KR101777538B1 - Systems and methods for low power consumption in wireless communication systems - Google Patents

Systems and methods for low power consumption in wireless communication systems Download PDF

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KR101777538B1
KR101777538B1 KR1020167033605A KR20167033605A KR101777538B1 KR 101777538 B1 KR101777538 B1 KR 101777538B1 KR 1020167033605 A KR1020167033605 A KR 1020167033605A KR 20167033605 A KR20167033605 A KR 20167033605A KR 101777538 B1 KR101777538 B1 KR 101777538B1
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enodeb
low power
component
information
timer
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KR1020167033605A
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Korean (ko)
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KR20160142893A (en
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푸닛 케이. 자인
바룬 엔. 라오
알리 티. 콕
마루티 굽타
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인텔 코포레이션
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Abstract

무선 통신 시스템에서 저전력 소비를 위한 방법, 시스템 및 장치가 본 명세서에서 개시된다. eNodeB(evolved node B)는 eNodeB에 접속된 사용자 장비(UE)에 접속 재구성 메시지를 제공하도록 구성되고, 접속 재구성 메시지는 전력 선호사항을 표시하도록 UE를 구성한다. eNodeB는 UE로부터 보조 정보를 수신한다. 보조 정보는 저전력 선호사항 표시 및 타이머 길이를 포함하고, 타이머 길이는 저전력 모드에 대한 선호되는 지속기간을 나타낸다. eNodeB는, 보조 정보를 수신하는 것에 응답하여, 접속 해제 메시지를 UE에 제공한다. 접속 해제 메시지는 타이머 길이를 포함하는 비연속적 수신(DRX) 페이징 정보를 포함한다.A method, system and apparatus for low power consumption in a wireless communication system are disclosed herein. An evolved node B (eNodeB) is configured to provide a connection reconfiguration message to a user equipment (UE) connected to the eNodeB, and the connection reconfiguration message configures the UE to indicate power preferences. The eNodeB receives assistance information from the UE. The supplemental information includes a low power preference indication and a timer length, and the timer length represents the preferred duration for the low power mode. The eNodeB, in response to receiving the assistance information, provides a disconnect message to the UE. The disconnect message includes discontinuous reception (DRX) paging information including a timer length.

Figure R1020167033605
Figure R1020167033605

Description

무선 통신 시스템에서 저전력 소비를 위한 시스템 및 방법{SYSTEMS AND METHODS FOR LOW POWER CONSUMPTION IN WIRELESS COMMUNICATION SYSTEMS}[0001] SYSTEM AND METHOD FOR LOW POWER CONSUMPTION IN WIRELESS COMMUNICATION SYSTEMS [0002]

관련 출원Related application

본 출원은 2012년 9월 28일자로 출원된 미국 가출원 제61/707,784호의 35 U.S.C. §119(e) 하의 이익을 주장하는데, 이 미국 가출원은 참조로 본 명세서에 완전히 포함된다.This application claims the benefit of U.S. Provisional Application No. 61 / 707,784, filed September 28, 2012, The benefit under §119 (e) is asserted, this US Provisional Application is hereby incorporated by reference in its entirety.

기술분야Technical field

본 개시물은 무선 통신 네트워크에 관한 것이다. 구체적으로는, 본 개시물은 무선 통신 시스템에서 향상된 사용자 장비 보조 정보를 전달하고 처리하기 위한 시스템 및 방법에 관한 것이다.The present disclosure relates to wireless communication networks. In particular, this disclosure is directed to a system and method for communicating and processing enhanced user equipment assistance information in a wireless communication system.

무선 모바일 통신 기술은 기지국과 무선 모바일 장치 사이에서 데이터를 전송하기 위해 다양한 표준과 프로토콜을 이용한다. 무선 통신 시스템 표준과 프로토콜은, 제3세대 파트너쉽 프로젝트(3GPP) 롱 텀 에볼루션(LTE); 산업계에는 WiMAX(Worldwide Interoperability for Microwave Access)라고 흔히 알려져 있는 IEEE(Institute of Electrical and Electronics Engineers) 802.16 표준; 및 산업계에는 WiFi라고 흔히 알려져 있는 IEEE 802.11 표준을 포함할 수 있다. LTE 시스템의 3GPP 라디오 액세스 네트워크(RAN: radio access network)에서, 기지국은, (통상 evolved Node B, enhanced Node B 또는 eNodeB라고 표기되는) E-UTRAN(Evolved Universal Terrestrial Radio Access Network) Node B와, 사용자 장비(UE: user equipment)라고 알려진 무선 모바일 장치와 통신하는 E-UTRAN에서의 라디오 네트워크 제어기(RNC: Radio Network Controller)의 조합일 수 있다. 다운링크(DL) 전송은 기지국(또는 eNodeB)으로부터 무선 모바일 장치(또는 UE)로의 통신일 수 있고, 업링크(UL) 전송은 무선 모바일 장치로부터 기지국으로의 통신일 수 있다.Wireless mobile communication technologies use various standards and protocols to transfer data between base stations and wireless mobile devices. Wireless communication system standards and protocols include: Third Generation Partnership Project (3GPP) Long Term Evolution (LTE); The industry includes the Institute of Electrical and Electronics Engineers (IEEE) 802.16 standard, commonly known as Worldwide Interoperability for Microwave Access (WiMAX); And the industry may include the IEEE 802.11 standard, commonly known as WiFi. In a 3GPP radio access network (RAN) of an LTE system, a base station includes an Evolved Universal Terrestrial Radio Access Network (E-UTRAN) Node B (commonly referred to as evolved Node B, enhanced Node B or eNodeB) May be a combination of a Radio Network Controller (RNC) in the E-UTRAN that communicates with a wireless mobile device known as a user equipment (UE). The downlink (DL) transmission may be from the base station (or eNodeB) to the wireless mobile device (or UE), and the uplink (UL) transmission may be from the wireless mobile device to the base station.

이전의 LTE 시스템을 포함한 많은 무선 시스템에서, UE는, UE의 배터리를 연장시키고/시키거나 UE 상에서 실행 중인 애플리케이션에 대해 (예를 들어, 레이턴시 면에서) 더 나은 성능을 달성하는 특정 기능과 프로세스에 대한 제어를 거의 갖지 않거나 전혀 갖지 않는다. 오히려, 많은 이러한 기능과 프로세스는 UE로부터의 입력 없이 eNodeB에 의해 결정된다.In many wireless systems, including previous LTE systems, the UE may be able to perform certain functions and processes that extend the battery of the UE and / or achieve better performance (e.g., in terms of latency) for applications running on the UE Have little or no control over them. Rather, many of these functions and processes are determined by the eNodeB without input from the UE.

도 1은 여기서 개시된 실시예에 따른 3GPP 액세스를 위한 통신 시스템의 아키텍처를 나타내는 개략도이다.
도 2는 여기서 개시된 실시예에 따른 UE의 컴포넌트들의 블록도이다.
도 3은 여기서 개시된 실시예에 따른 eNodeB의 컴포넌트들의 블록도이다.
도 4는 여기서 개시된 실시예에 따른 보조 정보를 얻기 위한 UE와 eNodeB 사이의 통신을 나타내는 통신 타임라인의 도면이다.
도 5는 여기서 개시된 실시예에 따른 UE와의 접속을 해제하기 위해 향상된 보조 정보를 얻고 처리하는 통신을 나타내는 통신 타임라인의 도면이다.
도 6은 여기서 개시된 실시예에 따른 접속 모드 긴 비연속적 수신(DRX: discontinuous reception)을 위해 UE를 구성하는 통신을 나타내는 통신 타임라인의 도면이다.
도 7은 여기서 개시된 실시예에 따른 UE에 대한 다운링크 패킷들을 버퍼링하는 통신을 나타내는 통신 타임라인의 도면이다.
도 8은 여기서 개시된 실시예에 따른 직접 경로 통신 세션을 확립하기 위한 방법의 플로우차트이다.
도 9는 여기서 개시된 실시예에 따른 감소된 핸드오버 임계치를 나타내는 신호 강도 그래프이다.
도 10은 여기서 개시된 실시예에 따른 보조 정보에 응답하여 UE를 해제하는 통신을 나타내는 통신 타임라인의 도면이다.
도 11은 여기서 개시된 실시예에 따른 보조 정보에 응답하여 UE를 해제하는 통신을 나타내는 통신 타임라인의 다른 도면이다.
도 12는 여기서 개시된 실시예에 따른 모바일 장치의 개략도이다.
1 is a schematic diagram illustrating the architecture of a communication system for 3GPP access according to an embodiment disclosed herein.
2 is a block diagram of components of a UE according to an embodiment disclosed herein.
3 is a block diagram of components of an eNodeB according to an embodiment disclosed herein.
4 is a diagram of a communication timeline illustrating communication between a UE and an eNodeB for obtaining assistance information in accordance with the disclosed embodiment.
5 is a diagram of a communication timeline illustrating communication to obtain and process enhanced assistance information to release a connection with a UE according to an embodiment disclosed herein.
FIG. 6 is a diagram of a communication timeline illustrating communication for configuring a UE for connection mode long discontinuous reception (DRX) according to an embodiment disclosed herein.
7 is a diagram of a communication timeline illustrating communication buffering downlink packets for a UE according to an embodiment disclosed herein.
8 is a flowchart of a method for establishing a direct path communication session in accordance with the disclosed embodiment.
9 is a graph of signal strength representing a reduced handover threshold in accordance with the disclosed embodiment.
10 is a diagram of a communication timeline illustrating communication for releasing a UE in response to assistance information in accordance with an embodiment disclosed herein.
11 is another view of a communication timeline illustrating communication for releasing a UE in response to assistance information in accordance with an embodiment disclosed herein.
12 is a schematic diagram of a mobile device according to an embodiment disclosed herein.

본 개시물의 실시예에 따른 시스템 및 방법의 상세한 설명이 이하에 제공된다. 수 개의 실시예가 설명되지만, 본 개시물은 임의의 하나의 실시예로 제한되는 것이 아니라, 대신에 다수의 대안물, 수정물 및 균등물을 포괄한다는 것을 이해해야 한다. 또한, 여기서 개시되는 실시예의 철저한 이해를 제공하기 위하여 다수의 특정한 상세사항이 이하의 설명에서 개시되지만, 일부 실시예는 이들 상세사항의 일부 또는 전부 없이 실시될 수 있다. 게다가, 명료성을 위하여, 관련 기술분야에 공지된 특정 기술 자료는 본 개시물을 불필요하게 모호하게 하는 것을 회피하기 위하여 상세히 설명되지 않았다.A detailed description of a system and method according to an embodiment of the present disclosure is provided below. While several embodiments have been described, it should be understood that the disclosure is not limited to any one embodiment, but instead encompasses a number of alternatives, modifications, and equivalents. In addition, although a number of specific details are set forth in the following description in order to provide a thorough understanding of the embodiments disclosed herein, some embodiments may be practiced without some or all of these details. In addition, for clarity, certain technical data known in the relevant art have not been described in detail in order to avoid unnecessarily obscuring the disclosure.

전술된 바와 같이, UE는, UE의 배터리를 연장시키고/시키거나 UE 상에서 실행 중인 애플리케이션에 대해 레이턴시를 최소화하는 특정 기능과 프로세스에 대한 제어를 거의 갖지 않거나 전혀 갖지 않는다. 예를 들어, eNodeB와 같은 기지국은 UE를 지원하기 위해 RAN 기능을 제어한다. 그러나, 다양한 모바일 인터넷 애플리케이션을 실행하는 스마트폰 및 다른 모바일 장치의 급증으로 인해, UE는, 그 선호사항, 제약 및/또는 요건을 UE 보조 정보의 형태로 eNodeB에 전달하도록 허용된다면 더욱 효율적으로 전력 절감 및 레이턴시 요건을 달성할 수 있다. 추가로, UE 보조 정보를 효과적으로 핸들링하고 처리하는 eNodeB는, 지원하는 통신 인프라스트럭처를 사용하여, UE의 전력 절감을 최대화하고, 레이턴시를 감소시키고/시키거나, 하나 이상의 UE 상의 사용자에 대한 서비스 품질을 향상시킬 수 있다. 본 개시물은 UE에 대해 논의하고 있지만, 통상의 기술자라면, 본 개시물과 교시물은 머신-대-머신 통신에도 적용된다는 것을 인식할 것이다.As described above, the UE has little or no control over certain functions and processes that extend the UE ' s battery and / or minimize latency for applications running on the UE. For example, a base station such as an eNodeB controls the RAN function to support the UE. However, due to the proliferation of smart phones and other mobile devices running various mobile Internet applications, the UE may be more efficient in power savings if it is allowed to deliver its preferences, constraints and / or requirements to the eNodeB in the form of UE ancillary information And latency requirements can be achieved. In addition, the eNodeB, which effectively handles and processes UE ancillary information, can use the supporting communication infrastructure to maximize power savings of the UE, reduce latency and / or reduce service quality for users on one or more UEs Can be improved. While this disclosure is being discussed for a UE, it will be appreciated by those of ordinary skill in the art that the present disclosure and teachings also apply to machine-to-machine communication.

도 1은 3GPP 액세스를 위한 예시적인 통신 시스템(100)을 나타낸다. 통신 시스템(100)은, 3GPP TS 23.401의 섹션 4에서 예시된 아키텍처에 기초한 인프라스트럭처 및/또는 아키텍처의 예이다. 아키텍처 및 개개의 컴포넌트들은 단지 예로서 주어진다. 통상의 기술자라면, 본 개시물의 양태들은 다른 표준을 구현하고/하거나 상이한 아키텍처를 갖는 통신 시스템에 적용가능하다는 것을 인식할 것이다.1 shows an exemplary communication system 100 for 3GPP access. The communication system 100 is an example of an infrastructure and / or architecture based on the architecture illustrated in section 4 of 3GPP TS 23.401. The architecture and the individual components are given by way of example only. Those of ordinary skill in the art will appreciate that aspects of the present disclosure may be applicable to communication systems that implement other standards and / or have a different architecture.

통신 시스템(100)은 사용자 장비(102)로의 통신 서비스 또는 액세스를 제공하는데 사용될 수 있는 다양한 컴포넌트를 예시하고 있다. 통신 시스템(100)은, 복수의 eNodeB(106)를 포함하는 E-UTRAN(104)을 포함한다. UTRAN(universal terrestrial radio access network)(108) 및 GERAN(GSM(global system for mobile communications) EDGE(enhanced data rates GSM evolution) radio access network)(110)도 또한 하위 호환을 위한 예로서 포함된다.Communication system 100 illustrates various components that may be used to provide communication services or access to user equipment 102. The communication system 100 includes an E-UTRAN 104 including a plurality of eNodeBs 106. A universal terrestrial radio access network (UTRAN) 108 and a GERAN (global system for mobile communications) EDGE radio access network (EDGE) 110 are also included as examples for backward compatibility.

또한, 통신 시스템(100)은 이동성 관리 엔티티(MME: mobility management entity)(112), 홈 가입자 서버(HSS: home subscriber server)(114) 및 SGSN(serving GPRS(general packet radio service) support node)(116)을 포함한다. 서빙 게이트웨이(SGW: serving gateway)(118), 패킷 데이터 네트워크 게이트웨이(PGW: packet data network gateway)(120) 및 PCRF(policy and charges rules function)(122)는 오퍼레이터의 인터넷 프로토콜(IP) 서비스들(124)에 대한 액세스를 제공한다. 다양한 컴포넌트들 간의 통신을 위한 예시적인 인터페이스도 또한 표시되어 있다.The communication system 100 also includes a mobility management entity (MME) 112, a home subscriber server (HSS) 114, and a serving general radio service (GPRS) support node (SGSN) 116). A serving gateway (SGW) 118, a packet data network gateway (PGW) 120 and a policy and charges rules function (PCRF) 122 may be used to provide the operator's Internet Protocol (IP) RTI ID = 0.0 > 124 < / RTI > An exemplary interface for communication between the various components is also indicated.

도 2는 보조 정보를 제공하도록 구성된 UE(102)의 예시적인 컴포넌트를 나타내는 블록도이다. UE(102)는 임의의 타입의 통신 및/또는 컴퓨팅 장치를 포함할 수 있다. 예시적인 UE(102)는 스마트폰, PDA(personal digital assistant), 태블릿 컴퓨터, 노트북 컴퓨터, Ultrabook™ 컴퓨터 등을 포함한다. UE(102)는, UE 트랜시버 컴포넌트(202), 접속 컴포넌트(204), 전력 모드 컴포넌트(206) 및 보조 정보 컴포넌트(208)를 포함하는 것으로 도시되어 있다. UE(102)는, 일부 실시예에서는, 더 적은 대안적인 및/또는 추가의 컴포넌트를 포함할 수 있다.2 is a block diagram illustrating an exemplary component of a UE 102 configured to provide assistance information. The UE 102 may comprise any type of communication and / or computing device. Exemplary UE 102 includes a smart phone, a personal digital assistant (PDA), a tablet computer, a notebook computer, an Ultrabook ™ computer, and the like. The UE 102 is shown to include a UE transceiver component 202, a connection component 204, a power mode component 206 and an assistance information component 208. The UE 102, in some embodiments, may include fewer alternative and / or additional components.

UE 트랜시버 컴포넌트(202)는 eNodeB(106) 또는 다른 라디오와 통신하도록 구성된다. UE 트랜시버 컴포넌트(202)는 메시지를 무선으로 송신 및 수신하기 위해 하나 이상의 안테나 및/또는 처리 회로를 포함할 수 있다. UE 트랜시버 컴포넌트(202)는 UE(102)의 프로세서 또는 다른 컴포넌트를 대신하여 메시지를 송신 및 수신하도록 동작할 수 있다. 일 실시예에 따르면, UE 트랜시버 컴포넌트(202)는 UE(102)의 에너지 소비를 감소시키기 위해 전원 오프될 수 있다.The UE transceiver component 202 is configured to communicate with the eNodeB 106 or other radio. The UE transceiver component 202 may include one or more antennas and / or processing circuitry for wirelessly transmitting and receiving messages. The UE transceiver component 202 may be operable to send and receive messages on behalf of the processor 102 or other components of the UE 102. [ According to one embodiment, the UE transceiver component 202 may be powered off to reduce the energy consumption of the UE 102.

접속 컴포넌트(204)는 UE(102)에 대한 접속 상세사항을 저장 및/또는 교섭한다. 일 실시예에서, 접속 컴포넌트(204)는 eNodeB(106)와의 통신 세션에 관한 정보를 저장한다. 예를 들어, 접속 컴포넌트(204)는 eNodeB(106) 또는 통신 시스템(100)의 다른 컴포넌트에 대한 식별자를 저장할 수 있다. 추가로, 접속 컴포넌트(204)는, 통신 시스템(100)과의 접속 확립, 접속 재구성 및/또는 접속 해제에 관한 메시지를 UE 트랜시버 컴포넌트(202)를 통해 수신하도록 구성될 수 있다. 접속 컴포넌트(204)는 메시지에서 수신된 정보에 기초하여 접속 정보를 수정 또는 업데이트할 수 있다.The connection component 204 stores and / or negotiates connection details for the UE 102. In one embodiment, the connection component 204 stores information about a communication session with the eNodeB 106. [ For example, the connection component 204 may store an identifier for the eNodeB 106 or other components of the communication system 100. In addition, the connection component 204 may be configured to receive messages via the UE transceiver component 202 regarding connection establishment, connection reconfiguration and / or disconnection with the communication system 100. The connection component 204 may modify or update the contact information based on information received in the message.

전력 모드 컴포넌트(206)는 UE(102)를 하나 이상의 전력 모드에 선택적으로 두도록 UE(102)를 제어한다. 전력 모드 컴포넌트(206)는 UE의 일부를 전원 오프하여 전력 소비를 감소시킬 수 있다. 예를 들어, 전력 모드 컴포넌트(206)는 UE 트랜시버 컴포넌트(202)를 전원 오프하거나, 프로세서를 유휴 모드에 두거나, 또는 UE(102)의 다른 컴포넌트에 의해 이용되는 전력을 제어할 수 있다. 일 실시예에서, 전력 모드 컴포넌트(206)는, UE가, UE의 라디오 상태 정보를 유지하기 위해 요구되지 않는 처리 회로 및 트랜시버 회로를 전원 오프함으로써 저전력 모드에 진입하게 한다. 상이한 전력 모드들이 선택되어, 상이한 조합의 에너지 절감 및 성능 이익을 초래할 수 있다. 일 실시예에서, 전력 모드 컴포넌트(206)는, 통신 시스템(100)에 의해 예상되는 전력 상태에 UE(102)를 유지하기 위해 스케줄, 타이머 또는 사이클을 따르도록 구성될 수 있다.The power mode component 206 controls the UE 102 to selectively place the UE 102 in one or more power modes. The power mode component 206 may power off a portion of the UE to reduce power consumption. For example, power mode component 206 may power off UE transceiver component 202, place the processor in idle mode, or control power used by other components of UE 102. In one embodiment, the power mode component 206 causes the UE to enter a low power mode by powering off the processing circuitry and the transceiver circuitry that are not required to maintain the radio state information of the UE. Different power modes may be selected, resulting in different combinations of energy savings and performance benefits. In one embodiment, the power mode component 206 may be configured to follow a schedule, timer, or cycle to maintain the UE 102 in a power state expected by the communication system 100.

또한, 전력 모드 컴포넌트(206)는 선호되는 현재 전력 모드를 결정할 수 있다. 예를 들어, 전력 모드 컴포넌트(206)는 UE(102) 상에서의 태스크 또는 자원 사용에 관한 정보를 수신하고, 선호되는 현재 전력 모드를 결정할 수 있다. 예를 들어, 전력 모드 컴포넌트(206)는, UE(102)에 의한 현재의 자원 사용 또는 태스크가 UE(102)를 소정 기간 동안 저전력 모드에 둘 수 있기에 충분히 작다고 결정할 수 있다. 예를 들어, 전력 모드 컴포넌트(206)는, 프로세서, UE 트랜시버 컴포넌트(202) 또는 UE(102)의 다른 컴포넌트가 소정 기간 동안 어떠한 태스크도 수행할 필요가 없다고 결정할 수 있다. 전력 모드 컴포넌트(206)는, UE(102) 상에서 사용되는 자원 또는 수행할 태스크의 부족에 기초하여, UE(102)를 저전력 모드에 둘 수 있다고 결정할 수 있다.In addition, the power mode component 206 may determine a preferred current power mode. For example, power mode component 206 may receive information about tasks or resource usage on UE 102 and determine the preferred current power mode. For example, the power mode component 206 may determine that the current resource usage or task by the UE 102 is small enough to place the UE 102 in a low power mode for a predetermined period of time. For example, the power mode component 206 may determine that the processor, the UE transceiver component 202, or other components of the UE 102 need not perform any task for a predetermined period of time. The power mode component 206 may determine that the UE 102 may be placed in a low power mode based on the resources used on the UE 102 or the lack of tasks to perform.

또한, 전력 모드 컴포넌트(206)는 UE(102)가 저전력 모드 내에 있는 시간량을 결정할 수 있다. 예를 들어, UE 트랜시버 컴포넌트(202)가 수 초 동안 메시지를 송신 또는 수신할 필요성이 없을 것이라고 전력 모드 컴포넌트(206)가 결정한다면, 전력 모드 컴포넌트(206)는 저전력 모드에 있을 선호되는 지속기간을 나타내는 UE(102)에 대한 타이머 길이를 결정할 수 있다.In addition, the power mode component 206 may determine the amount of time that the UE 102 is in the low power mode. For example, if the power mode component 206 determines that the UE transceiver component 202 does not need to transmit or receive a message for a few seconds, the power mode component 206 may determine a preferred duration in the low power mode Lt; RTI ID = 0.0 > UE 102 < / RTI >

보조 정보 컴포넌트(208)는 통신 시스템(100)에 송신될 보조 정보를 결정한다. 보조 정보 컴포넌트(208)는 UE 트랜시버 컴포넌트(202)가 eNodeB(106) 또는 다른 라디오로의 메시지에서 보조 정보를 송신하게 할 수 있다. 일 실시예에서, 보조 정보 컴포넌트(208)는 UE(102)의 다른 컴포넌트로부터 선호사항을 수신하고, 이들 선호사항을 eNodeB(106) 또는 통신 시스템(100)의 다른 부분에 포워딩한다. eNodeB(106) 및/또는 통신 시스템(100)은 UE(102)가 이들 선호사항에 기초하여 더 낮은 전력 모드에 진입하는 것을 허용하거나 이를 UE에 지시할 수 있다.The auxiliary information component 208 determines the auxiliary information to be transmitted to the communication system 100. The auxiliary information component 208 may allow the UE transceiver component 202 to transmit assistance information in a message to the eNodeB 106 or other radio. In one embodiment, the ancillary information component 208 receives preferences from other components of the UE 102 and forwards these preferences to the eNodeB 106 or other parts of the communication system 100. The eNodeB 106 and / or the communication system 100 may allow the UE 102 to enter a lower power mode based on these preferences, or it may instruct the UE.

일 실시예에서, 보조 정보 컴포넌트(208)는, 전력 모드 컴포넌트(206)에 의해 결정된 전력 선호사항에 기초하여 보조 정보에 전력 선호사항 표시를 포함한다. 예를 들어, 보조 정보 컴포넌트(208)는, 더 낮은 전력 모드가 선호된다고 전력 모드 컴포넌트(206)가 결정하는 것에 응답하여 저전력 선호사항 표시(low power preference indication)를 eNodeB(106)에 송신할 수 있다. 보조 정보 컴포넌트(208)는 보조 정보에 타이머 길이를 포함할 수 있다. 타이머 길이는, UE(102)가 저전력 모드에 진입할 것이므로 메시지를 수신 및/또는 송신하는데 이용가능하지 않은 시간의 길이를 통신 시스템(100) 또는 eNodeB(106)에 표시할 수 있다. 이 타이머 길이는 유휴 모드 또는 접속 모드에서 DRX 타이머를 유도하기 위해 (eNodeB(106)와 같은) 네트워크에 의해 이용될 수 있거나, 또는 타이머 길이는 DRX 타이머에 대한 값 그 자체를 표시할 수 있다.In one embodiment, the ancillary information component 208 includes a power preference indication in the ancillary information based on the power preferences determined by the power mode component 206. [ For example, the ancillary information component 208 may send a low power preference indication to the eNodeB 106 in response to the power mode component 206 determining that a lower power mode is preferred have. The ancillary information component 208 may include a timer length in the ancillary information. The timer length may indicate to communication system 100 or eNodeB 106 the length of time that UE 102 is not available to receive and / or transmit a message as it will enter a low power mode. This timer length may be used by the network (such as eNodeB 106) to derive the DRX timer in idle or connected mode, or the timer length may indicate the value itself for the DRX timer.

도 3은 보조 정보를 수신 및 처리하도록 구성된 eNodeB(106)의 예시적인 컴포넌트를 나타내는 블록도이다. 다른 실시예에서, eNodeB(106)는 임의의 타입의 RAN에서의 RNC 및/또는 라디오를 포함할 수 있다. eNodeB(106)는, eNodeB 트랜시버 컴포넌트(302), 접속 구성 컴포넌트(304), 보조 정보 컴포넌트(306), 신호 강도 컴포넌트(308), 핸드오버 컴포넌트(310), 비활성 컴포넌트(312) 및 부하 컴포넌트(314)를 포함하는 것으로 도시되어 있다. eNodeB(106)는, 일부 실시예에서는, 더 적은 대안적인 및/또는 추가의 컴포넌트를 포함할 수 있다. 예를 들어, eNodeB(106)는, 3GPP 또는 다른 통신 표준에 의해 정의된 기능, 서비스 및 인터페이스를 구현하는 다른 컴포넌트들을 포함할 수 있다.3 is a block diagram illustrating an exemplary component of eNodeB 106 configured to receive and process assistance information. In another embodiment, eNodeB 106 may include RNC and / or radio in any type of RAN. The eNodeB 106 includes an eNodeB transceiver component 302, a connection configuration component 304, an auxiliary information component 306, a signal strength component 308, a handover component 310, an inactive component 312, RTI ID = 0.0 > 314). ≪ / RTI > The eNodeB 106, in some embodiments, may include fewer alternative and / or additional components. For example, the eNodeB 106 may include other components that implement the functions, services, and interfaces defined by 3GPP or other communications standards.

eNodeB 트랜시버 컴포넌트(302)는 UE(102) 또는 통신 시스템(100)의 다른 컴포넌트와 통신하도록 구성된다. eNodeB 트랜시버 컴포넌트(302)는 무선으로 UE(102)로 메시지를 송신하고 UE(102)로부터 메시지를 수신하기 위해 하나 이상의 안테나 및/또는 처리 회로를 포함할 수 있다. eNodeB 트랜시버 컴포넌트(302)는 eNodeB(106)의 프로세서 또는 다른 컴포넌트로부터의 명령 또는 정보에 기초하여 메시지를 송신 및 수신하도록 동작할 수 있다.The eNodeB transceiver component 302 is configured to communicate with the UE 102 or other components of the communication system 100. The eNodeB transceiver component 302 may include one or more antennas and / or processing circuitry to transmit messages to and receive messages from the UE 102 wirelessly. eNodeB transceiver component 302 may be operable to send and receive messages based on instructions or information from a processor or other component of eNodeB 106. [

접속 구성 컴포넌트(304)는 eNodeB(106)에 접속된 UE(102) 및/또는 추가의 UE에 대한 접속 상세사항을 저장 및 결정한다. 일 실시예에서, 접속 구성 컴포넌트(304)는 UE(102)와의 통신 세션에 관한 정보를 저장한다. 예를 들어, 접속 구성 컴포넌트(304)는 UE(102)에 대한 식별자뿐만 아니라 UE(102)에 대한 세션 정보를 저장할 수 있다. 접속 구성 컴포넌트(304)는, UE(102)와의 접속을 확립, 재구성 또는 해제하도록 UE(102)와의 접속을 구성하게끔 구성될 수 있다. 일 실시예에서, 접속 구성 컴포넌트(304)는 라디오 자원 제어(RRC: radio resource control) 메시징을 이용하여, UE(102) 및/또는 UE(102)와의 접속을 구성한다. 접속 구성 컴포넌트(304)는, MME(112), SGW(118) 또는 통신 시스템(100)의 다른 컴포넌트로부터 수신된 정보에 기초하여 UE(102)와의 접속을 수정 또는 해제할 수 있다.The connection configuration component 304 stores and determines connection details for the UE 102 and / or additional UEs connected to the eNodeB 106. In one embodiment, the connection configuration component 304 stores information about the communication session with the UE 102. For example, connection configuration component 304 may store session information for UE 102, as well as an identifier for UE 102. [ The connection configuration component 304 may be configured to configure a connection with the UE 102 to establish, reconfigure, or release a connection with the UE 102. In one embodiment, connection configuration component 304 configures the connection with UE 102 and / or UE 102 using radio resource control (RRC) messaging. The connection configuration component 304 may modify or release the connection with the UE 102 based on information received from the MME 112, the SGW 118, or other components of the communication system 100.

보조 정보 컴포넌트(306)는 UE(102)로부터 보조 정보를 수신하고 처리한다. 예를 들어, eNodeB(106)의 보조 정보 컴포넌트(306)는 UE(102)의 보조 정보 컴포넌트(208)에 의해 결정된 보조 정보를 수신할 수 있다. 보조 정보 컴포넌트(306)는 UE(102)에 대한 전력 선호사항 표시를 포함하는 보조 정보를 수신할 수 있다. 보조 정보는, UE(102)가 저전력 모드에 진입할 것이므로 메시지를 수신 및/또는 송신하는데 이용가능하지 않은 시간의 길이를 eNodeB(106)에 나타내는 타이머 길이를 포함할 수 있다. 이 타이머 길이는 유휴 모드 또는 접속 모드에서 DRX 타이머를 유도하기 위해 eNodeB(106)에 의해 이용될 수 있거나, 또는 타이머 길이는 DRX 타이머에 대한 값 그 자체를 표시할 수 있다.Ancillary information component 306 receives and processes assistance information from UE 102. For example, the ancillary information component 306 of the eNodeB 106 may receive the ancillary information determined by the ancillary information component 208 of the UE 102. The ancillary information component 306 may receive supplemental information including a power preference indication for the UE 102. [ The supplemental information may include a timer length that indicates to eNodeB 106 the length of time that UE 102 is not available to receive and / or transmit a message as it will enter a low power mode. This timer length may be used by eNodeB 106 to derive a DRX timer in idle or connected mode, or the timer length may indicate the value itself for the DRX timer.

보조 정보 컴포넌트(306)는 접속 구성 컴포넌트(304)가 UE(102)로부터 수신된 보조 정보에 기초하여 UE(102)와의 접속을 수정, 해제 및/또는 재확립하게 할 수 있다. 예를 들어, 보조 정보 컴포넌트(306)는 eNodeB 트랜시버 컴포넌트(302)를 통해 UE(102)로부터 보조 정보를 수신할 수 있고, 접속 구성 컴포넌트(304)는 보조 정보에 기초하여 UE(102)와의 접속을 재구성 또는 해제할 수 있다.The ancillary information component 306 may allow the connection configuration component 304 to modify, release, and / or re-establish a connection with the UE 102 based on the assistance information received from the UE 102. [ For example, the ancillary information component 306 may receive assistance information from the UE 102 via the eNodeB transceiver component 302, and the connection configuration component 304 may receive the assistance information from the UE 102 based on the assistance information, Can be reconfigured or released.

신호 강도 컴포넌트(308)는 UE(102)의 신호 강도를 결정한다. 신호 강도 컴포넌트(308)는, UE(102)에 의해 송신된 신호의 eNodeB(106)에 의해 수신될 때의 신호 강도를 결정할 수 있고/있거나, eNodeB(106)로부터의 UE(102)에서 수신될 때의 신호 강도를 결정할 수 있다. 일 실시예에서, 신호 강도 컴포넌트(308)는 UE(102)에 대한 수신 신호 강도 표시자(RSSI: received signal strength indicator)를 결정할 수 있다. 신호 강도 컴포넌트(308)는 UE(102)에 의해 그리고/또는 eNodeB(106)의 신호 강도 컴포넌트(308)에 의해 수행되는 테스트에 기초하여 신호 강도를 결정할 수 있다.The signal strength component 308 determines the signal strength of the UE 102. The signal strength component 308 may determine the signal strength when received by the eNodeB 106 of the signal transmitted by the UE 102 and / or may determine the signal strength to be received at the UE 102 from the eNodeB 106 The signal strength can be determined. In one embodiment, the signal strength component 308 may determine a received signal strength indicator (RSSI) for the UE 102. The signal strength component 308 may determine the signal strength based on a test performed by the UE 102 and / or the signal strength component 308 of the eNodeB 106. [

일 실시예에서, 신호 강도 컴포넌트(308)는 UE(102)의 신호 강도를 핸드오버 임계치와 비교한다. 핸드오버 임계치는 UE(102)가 새로운 eNodeB(106)와 같은 새로운 셀이나 라디오로 스위칭되어야 하는 신호 강도를 나타낼 수 있다. 일 실시예에서, 신호 강도 컴포넌트(308)는, UE(102)의 신호 강도가 핸드오버 임계치는 아니더라도 핸드오버 임계치 부근인지를 결정한다. 예를 들어, 신호 강도 컴포넌트(308)는 신호 강도가 핸드오버 임계치의 특정한 범위 내에 있는지를 결정할 수 있다. 이 범위는 신호 강도가 특정한 수의 데시벨(dB) 내에 있는 것을 포함할 수 있다. 대안으로서, 이 범위는 핸드오버 임계치 주위의 임의의 단위에 기초한 RSSI 값들의 범위를 포함할 수 있다.In one embodiment, the signal strength component 308 compares the signal strength of the UE 102 with a handover threshold. The handover threshold may indicate the signal strength at which the UE 102 should switch to a new cell or radio, such as the new eNodeB 106. [ In one embodiment, the signal strength component 308 determines whether the signal strength of the UE 102 is near the handover threshold, even if it is not a handover threshold. For example, the signal strength component 308 may determine if the signal strength is within a specified range of the handover threshold. This range may include that the signal strength is within a certain number of decibels (dB). Alternatively, this range may include a range of RSSI values based on any unit around the handover threshold.

핸드오버 컴포넌트(310)는 UE(102)를 새로운 셀이나 새로운 eNodeB(106)로 핸드오버하기 위한 핸드오버 절차를 제어한다. 핸드오버 컴포넌트(310)는, UE(102), MME(112), SGW(118) 또는 다른 컴포넌트와 통신하여, UE(102)에 대한 통신 세션을 다른 셀, eNodeB(106) 등으로 이전할 수 있다. 일 실시예에서, 핸드오버 컴포넌트(310)는 UE(102)를 핸드오버하기 위한 다수의 설정을 저장 및/또는 구성한다. 예를 들어, 핸드오버 컴포넌트(310)는, 핸드오버 임계치, UE(102)가 핸드오버될 타겟 eNodeB(106)에 대한 정보 등을 저장 또는 구성할 수 있다.The handover component 310 controls the handover procedure for handing over the UE 102 to a new cell or a new eNodeB 106. [ The handover component 310 may communicate with the UE 102, the MME 112, the SGW 118 or other component to transfer the communication session for the UE 102 to another cell, eNodeB 106, have. In one embodiment, the handover component 310 stores and / or configures a number of settings for handing over the UE 102. For example, the handover component 310 may store or configure a handover threshold, information about the target eNodeB 106 to which the UE 102 is to be handed over, and so on.

일 실시예에서, 핸드오버 컴포넌트(310)는 보조 정보에 기초하여 핸드오버 절차 또는 핸드오버 절차에 대한 설정을 수정한다. 일 실시예에서, 핸드오버 컴포넌트(310)는 핸드오버 임계치를 감소시키거나, 또는 핸드오버 절차가 수행되지 않을 것이라고 결정한다. 일 예로서, 핸드오버 컴포넌트(310)는 저전력 선호사항 표시를 포함하는 UE(102)로부터의 보조 정보의 수신에 응답하여 UE(102)에 대한 핸드오버 임계치를 감소시킬 수 있다. 다른 예로서, 핸드오버 컴포넌트(310)는, 저전력 선호사항 표시를 포함하는 UE(102)로부터의 보조 정보의 수신에 응답하여 UE(102)에 대해 어떠한 핸드오버 절차도 수행되지 않을 것이라고 결정할 수 있다.In one embodiment, the handover component 310 modifies the settings for the handover procedure or handover procedure based on the assistance information. In one embodiment, the handover component 310 reduces the handover threshold or determines that no handover procedure will be performed. As an example, the handover component 310 may reduce the handover threshold for the UE 102 in response to receiving assistance information from the UE 102 that includes a low power preference indication. As another example, the handover component 310 may determine that no handover procedure will be performed to the UE 102 in response to receiving assistance information from the UE 102 that includes a low-power preference indication .

비활성 컴포넌트(312)는 UE(102)의 활동을 추적한다. 일 실시예에서, 비활성 컴포넌트(312)는, UE(102)와의 통신이 중단될 때마다 UE(102)에 대한 비활성 타이머를 시작한다. 예를 들어, 비활성 타이머는, eNodeB(106)가 UE(102)로부터 메시지 또는 통신 스트림의 끝을 수신한 후에 시작될 수 있다. 비활성 컴포넌트(312)는, 비활성 타이머가 만료하는 경우에 UE(102)를 저전력 모드에 둘 수 있다고 결정할 수 있다.The inactive component 312 tracks the activity of the UE 102. In one embodiment, the inactive component 312 initiates an inactivity timer for the UE 102 whenever communication with the UE 102 is interrupted. For example, an inactivity timer may be started after the eNodeB 106 receives an end of a message or a communication stream from the UE 102. Inactive component 312 may determine that UE 102 may be placed in a low power mode if the inactivity timer expires.

일 실시예에서, 비활성 컴포넌트(312)는, eNodeB(106)가 보조 정보를 수신하는 것에 응답하여 비활성 타이머가 곧 만료하는지를 결정한다. 타이머가 곧 만료한다면, 비활성 컴포넌트(312)는 비활성 타이머가 곧 만료한다는 것을 접속 구성 컴포넌트(304)에 표시할 수 있다. 일 실시예에서, 그러면, 접속 구성 컴포넌트(304)는 UE(102)와의 접속이 해제될 수 있다고 결정한다. 유사하게, 접속 구성 컴포넌트(304)는, UE(102)를 해제하기 전에, 신호 강도 컴포넌트(308)에 의해 결정되는 신호 강도가 낮은지를 확인하기 위해 또한 대기할 수 있다. 신호 강도가 낮고 비활성 타이머가 곧 만료할 때 UE(102)를 해제하는 것은, UE(102)가 저전력 모드 또는 유휴 모드로 곧 진입할 때 UE(102)를 핸드오버하기 위한 처리 오버헤드를 감소시킬 수 있다.In one embodiment, the inactive component 312 determines whether the inactivity timer expires in response to the eNodeB 106 receiving the assistance information. If the timer expires soon, the inactive component 312 may indicate to the connection configuration component 304 that the inactivity timer is about to expire. In one embodiment, the connection configuration component 304 then determines that the connection with the UE 102 can be released. Similarly, the connection configuration component 304 may also wait to confirm that the signal strength determined by the signal strength component 308 is low before releasing the UE 102. Releasing the UE 102 when the signal strength is low and the inactivity timer is about to expire will reduce the processing overhead for handing over the UE 102 when the UE 102 is entering a low power or idle mode soon .

부하 컴포넌트(314)는 eNodeB(106)의 부하를 결정한다. 예를 들어, 부하 컴포넌트(314)는 eNodeB(106)가 용량의 몇 퍼센트에서 동작하고 있는지를 결정할 수 있다. 예를 들어, eNodeB(106)가 거의 가득 찬 용량이라면, 부하 컴포넌트(314)는 eNodeB(106)가 과부하되어 있다고 결정할 수 있다. 유사하게, eNodeB(106)가 정의된 기간 내에 요청에 대해 응답할 수 없다면, 부하 컴포넌트(314)는 eNodeB(106)가 과부하되어 있다고 결정할 수 있다. 통상의 기술자라면, eNodeB(106)의 부하를 결정하기 위한 다른 방법과 시스템을 인식할 것이다.The load component 314 determines the load of the eNodeB 106. For example, the load component 314 may determine what percentage of the capacity the eNodeB 106 is operating at. For example, if eNodeB 106 is near full capacity, load component 314 may determine that eNodeB 106 is overloaded. Similarly, if eNodeB 106 can not respond to a request within a defined period, load component 314 may determine that eNodeB 106 is overloaded. Those of ordinary skill in the art will recognize other methods and systems for determining the load of the eNodeB 106.

일 실시예에서, 부하 컴포넌트(314)는 eNodeB(106)의 부하 상태를 접속 구성 컴포넌트(304)에 표시한다. 예를 들어, 부하 컴포넌트(314)는 eNodeB(106)가 과부하되어 있다고 결정할 수 있다. 그러면, 접속 구성 컴포넌트(304)는 보조 정보 또는 다른 정보와 함께 eNodeB(106)의 부하 상태를 이용하여, UE(102)와의 접속을 핸들링하는 방법을 결정할 수 있다. 일 실시예에서, 접속 구성 컴포넌트(304)는, 저전력 표시를 포함하는 보조 정보를 수신하는 것 및 eNodeB(106)가 과부하되어 있다고 부하 컴포넌트(314)가 결정하는 것에 응답하여, UE(102)와의 접속을 해제하거나 수정한다. 예를 들어, 저전력 상태에 대한 선호사항을 표시하는 UE(102)와의 접속의 해제는 eNodeB(106)에 대한 부하를 우선순위화하는 효과적인 방법일 수 있다. 저전력 표시는, UE(102)가 곧 자원을 필요로 하지는 않을 것이라는 것을 나타낼 수 있고, UE(102)를 해제하는 것은 자원을 요청하고 있는 다른 UE(102)를 eNodeB(106)가 더 양호하게 서빙하는 것을 허용할 수 있다.In one embodiment, the load component 314 displays the load status of the eNodeB 106 in the connection configuration component 304. For example, the load component 314 may determine that the eNodeB 106 is overloaded. The connection configuration component 304 may then determine how to handle the connection with the UE 102 using the load status of the eNodeB 106 with the assistance information or other information. In one embodiment, the connection configuration component 304 is configured to receive auxiliary information including a low power indication and to determine whether the eNodeB 106 is overloaded, in response to the load component 314 determining that the eNodeB 106 is overloaded. Disconnect or modify connection. For example, cancellation of a connection with UE 102 indicating a preference for a low power state can be an effective way of prioritizing the load on eNodeB 106. [ The low power indication may indicate that the UE 102 will not soon be in need of resources and releasing the UE 102 may allow the eNodeB 106 to better serve the other UE 102 requesting the resource .

도 4는 보조 정보를 획득 및/또는 제공하기 위한 UE(102)와 eNodeB(106) 사이의 통신을 나타내는 통신 타임라인(400)의 도면이다. 통신 타임라인(400)은, 3GPP TS 36.331 섹션 5.6.10에서 제공되는 UE 보조 정보의 논의를 반영한다. 본 절차의 목적은 UE(102)의 전력 절감 선호사항을 E-UTRAN(104)(예를 들어, eNodeB(106))에 통지하는 것이다. 전력 선호사항 표시를 제공하도록 UE(102)를 구성하면, 일 실시예에 따르면, E-UTRAN(104)(또는 eNodeB(106))은, UE(102)가 전력 절감 구성을 선호한다는 것을 명시적으로 표시할 때까지는 UE(102)가 주로 전력 절감에 최적화된 구성을 선호하지 않는다고 간주한다. 그러나, 다른 실시예에서는, E-UTRAN(104)은, UE(102)를 전력 선호사항 표시를 위해 구성 및 가능케 하면, UE(102)가 전력 절감에 대한 디폴트 구성을 선호한다고 가정한다.4 is a diagram of a communication timeline 400 that represents communication between UE 102 and eNodeB 106 to obtain and / or provide assistance information. The communication timeline 400 reflects the discussion of UE ancillary information provided in 3GPP TS 36.331 section 5.6.10. The purpose of this procedure is to inform the E-UTRAN 104 (eNodeB 106) of the power saving preferences of the UE 102, for example. E-UTRAN 104 (or eNodeB 106), when configured to provide UE 102 with a power preference indication, indicates that UE 102 prefers a power saving configuration, It is assumed that the UE 102 does not prefer a configuration that is mainly optimized for power saving. However, in other embodiments, the E-UTRAN 104 assumes that the UE 102 prefers the default configuration for power saving if it configures and enables the UE 102 for power preference indication.

eNodeB(106)와 UE(102)는 UE(102)에 대한 접속을 재구성한다(402). 이 접속은 RRC 메시징을 이용하여 재구성될 수 있다(402). 이 접속은, UE(102)가 eNodeB(106)에 전력 선호사항 표시를 제공하는 것을 허용하도록 재구성될 수 있다(402). 예를 들어, eNodeB(106)의 접속 구성 컴포넌트(304)는 전력 선호사항 표시를 송신하도록 UE(102)를 구성하게 RRC 접속 재구성 메시지를 송신할 수 있다. UE(102)의 접속 컴포넌트(204)는 재구성 메시지를 수신하고, 이 메시지에 기초하여 UE(102)를 재구성하고, 접속 및/또는 UE(102)가 재구성되었다는 것을 확인하기 위해 RRC 접속 재구성 완료 메시지를 송신할 수 있다.The eNodeB 106 and the UE 102 reconstruct the connection to the UE 102 (402). This connection may be reconfigured using RRC messaging (402). This connection may be reconfigured (402) to allow the UE 102 to provide a power preference indication to the eNodeB 106. For example, the connection configuration component 304 of the eNodeB 106 may send an RRC connection reconfiguration message to configure the UE 102 to transmit a power preference indication. The connection component 204 of the UE 102 receives the reconfiguration message, reconfigures the UE 102 based on the message, and sends an RRC Connection Reconfiguration Complete message to confirm that the connection and / or the UE 102 has been reconfigured Can be transmitted.

UE(102)는 UE(102)의 전력 선호사항을 표시하기 위해서 전력 선호사항 표시자(PPI: power preference indicator)를 포함하는 UE 보조 정보를 eNodeB(106)에 송신한다(404). UE(102)는 저전력 선호사항 표시에 대한 PPI를 포함하는 UE 보조 정보 메시지를 송신할 수 있다(404). UE(102)는, UE(102)가 저전력 상태를 선호한다고 전력 모드 컴포넌트(206)가 결정하는 것에 응답하여 UE 보조 정보를 송신할 수 있다(404). 예를 들어, 전력 모드 컴포넌트(206)는, 소정 기간 동안 메시지를 송신 또는 수신할 필요가 없을 것이라고 결정할 수 있고, 전력 소비를 감소시키기 위해 저전력 상태에 진입할 수 있다고 결정할 수 있다.The UE 102 transmits (404) the UE ancillary information to the eNodeB 106, which includes a power preference indicator (PPI), to indicate the power preference of the UE 102. [ UE 102 may send 404 a UE assistance information message that includes the PPI for low power preference indication. The UE 102 may send 404 the UE assistance information in response to the power mode component 206 determining that the UE 102 prefers a low power state. For example, the power mode component 206 may determine that it will not need to transmit or receive a message for a predetermined period of time, and may determine that it can enter a low power state to reduce power consumption.

전력 선호사항 표시를 제공하도록 구성되고 (RRC_CONNECTED 상태와 같은) 접속 모드에 있는 UE(102)는 보조 정보를 제공하기 위한 절차를 개시할 수 있다. 보조 정보를 제공하기 위한 절차는, UE(102)가 전력 선호사항 표시를 제공하도록 구성될 때 및 전력 선호사항이 변경될 때를 포함한 몇 가지 경우에 수행될 수 있다. 예를 들어, UE(102)가 전력 선호사항 표시를 제공하도록 구성되는 경우, UE(102)는, (1) UE(102)가 eNodeB(106)에 의해 전력 선호사항 표시를 제공하도록 구성된 후에 아직 UE 보조 정보 메시지를 송신하지 않았다면, 또는 (2) UE(102)에 대한 현재의 전력 선호사항이 UE 보조 정보 메시지의 마지막 송신에서 표시된 것과 상이하고 (3GPP TS 36.331에서 논의된 타이머 T340과 같은) 메시지 타이머가 실행 중이지 않다면, 보조 정보 절차를 개시할 수 있다. 그러면, UE(102)는 대응하는 전력 선호사항 표시를 갖는 UE 보조 정보 메시지의 송신을 개시할 수 있다.The UE 102 in the connected mode (such as the RRC_CONNECTED state) configured to provide a power preference indication may initiate a procedure for providing assistance information. Procedures for providing assistance information may be performed in some cases, including when UE 102 is configured to provide power preference indications and when power preferences change. For example, if the UE 102 is configured to provide power preference indication, the UE 102 may be configured to: (1) configure the UE 102 to provide a power preference indication by the eNodeB 106, (2) the current power preference for UE 102 is different from the one indicated in the last transmission of the UE assistance information message (such as timer T340 discussed in 3GPP TS 36.331), or If the timer is not running, an assistance information procedure may be initiated. UE 102 may then initiate transmission of a UE assistance information message with a corresponding power preference indication.

UE(102)가 주로 전력 절감에 최적화된 구성을 선호한다면, UE(102)는 저전력 소비를 나타내도록 전력 선호사항 표시를 설정한다(예를 들어, powerPrefIndication을 lowPowerConsumption으로 설정한다). UE(102)가 주로 전력 절감에 최적화된 구성을 선호하지 않는다면, UE(102)는 통상 전력 소비를 나타내도록 전력 선호사항을 설정할 수 있다(예를 들어, powerPrefIndication을 normal로 설정한다). 또한, UE(102)는, 타이머가 만료하면 보조 정보 절차의 개시를 트리거하도록 타이머 값을 재시작할 수 있다. 예를 들어, UE(102)는, UE(102) 또는 eNodeB(106)에 의해 표시되는 powerPrefIndication 값에 의해 표시된 값으로 타이머 T340을 재시작할 수 있다. 그러면, UE(102)는 전송을 위해 하위 계층들에 UE 보조 정보 메시지의 일부로서 보조 정보를 제출할 수 있다.If the UE 102 primarily prefers a configuration that is optimized for power saving, the UE 102 sets a power preference indication to indicate low power consumption (e.g., set powerPrefIndication to lowPowerConsumption). If the UE 102 does not primarily prefer a configuration that is optimized for power savings, the UE 102 may set the power preferences to indicate normal power consumption (e.g., set powerPrefIndication to normal). In addition, the UE 102 may restart the timer value to trigger the initiation of the assistance information procedure when the timer expires. For example, the UE 102 may restart the timer T340 with the value indicated by the powerPrefIndication value indicated by the UE 102 or eNodeB 106. For example, The UE 102 may then submit sub-information as part of the UE ancillary information message to lower layers for transmission.

eNodeB(106)는 보조 정보를 수신할 수 있고, 이 정보를 처리하여 UE(102)에 대한 전력 소비를 감소시키고/시키거나 통신 시스템(100) 상의 부하를 감소시킬 수 있다. 도 5, 6, 7, 8, 9, 10 및 11은, 향상된 보조 정보의 예들 및/또는 eNodeB(106) 및/또는 통신 시스템(100)의 다른 부분들에 의한 보조 정보의 이용을 나타낸다.The eNodeB 106 may receive assistance information and may process this information to reduce power consumption for the UE 102 and / or reduce the load on the communication system 100. Figures 5, 6, 7, 8, 9, 10, and 11 illustrate examples of enhanced assistance information and / or use of assistance information by eNodeB 106 and / or other parts of communication system 100.

도 5는 향상된 보조 정보를 획득하고 처리하여 UE(102)와의 접속을 해제하기 위한 UE(102), eNodeB(106), MME(112) 및 SGW(118) 사이의 통신을 나타내는 통신 타임라인(500)의 도면이다.5 illustrates a communication timeline 500 (FIG. 5) that represents communication between UE 102, eNodeB 106, MME 112 and SGW 118 to obtain and process enhanced assistance information to disconnect from UE 102 FIG.

eNodeB(106)와 UE(102)는 UE(102)에 대한 접속을 재구성한다(402). 접속의 재구성(402)은 도 4와 관련하여 논의된 것과 유사한 방식으로 수행될 수 있다.The eNodeB 106 and the UE 102 reconstruct the connection to the UE 102 (402). Reconfiguration 402 of the connection may be performed in a manner similar to that discussed with respect to FIG.

UE(102)는 UE(102)의 전력 선호사항을 표시하는 UE 보조 정보를 eNodeB(106)에 송신한다(502). UE(102)는 도 4에 도시된 바와 같은 보조 정보를 전송하는 것(404)과 관련하여 논의된 것과 유사한 방식으로 보조 정보를 송신할 수 있다(502). 그러나, UE(102)는 또한 UE(102)가 얼마나 오래 저전력 상태에 있기를 선호하는지를 나타내는 타이머 길이를 포함하는 보조 정보를 송신할 수 있다(502). 예를 들어, 전력 모드 컴포넌트(206)는 UE(102)가 특정한 기간 동안 저전력 상태에 있어야 한다고 결정할 수 있다. 이 타이머 길이는 유휴 모드 또는 접속 모드에서 DRX 타이머를 유도하기 위해 네트워크에 의해 이용될 수 있거나, 또는 타이머 길이는 DRX 타이머 값 그 자체를 표시할 수 있다. 이 기간은 eNodeB(106)에 송신된(502) 보조 정보에 포함될 수 있다. 유사하게, UE(102)는 또한 보조 정보에 포함시키기 위해 선호되는 DRX 페이징 정보를 결정하고, 선호되는 DRX 페이징을 eNodeB(106)에 송신할 수 있다(502).The UE 102 transmits 502 the UE ancillary information indicating the power preference of the UE 102 to the eNodeB 106. UE 102 may transmit 502 assistance information in a manner similar to that discussed with respect to transmitting 404 assistance information as shown in FIG. However, the UE 102 may also transmit 502 assistance information including a timer length indicating how long the UE 102 prefers to be in a low power state. For example, power mode component 206 may determine that UE 102 should be in a low power state for a certain period of time. This timer length may be used by the network to derive the DRX timer in the idle or connected mode, or the timer length may indicate the DRX timer value itself. This period may be included in the ancillary information sent 502 to the eNodeB 106. Similarly, the UE 102 may also determine the preferred DRX paging information for inclusion in the ancillary information and transmit 502 the preferred DRX paging to the eNodeB 106 (502).

eNodeB(106)는 UE(102)에 대한 비활성 타이머가 곧 만료하는지를 결정할 수 있다(503). 비활성 타이머는 비활성 컴포넌트(312)에 의해 실행되는 비활성 타이머일 수 있다. 일 실시예에서, eNodeB(106)는, UE(102)에 의해 송신된(502) 보조 정보의 수신에 응답하여 비활성 타이머가 곧 만료하는지를 결정한다. eNodeB(106)는, 비활성 타이머가 미리 구성된 임계치 아래로 떨어지거나 이 임계치에 도달하는 것에 기초하여 UE에 대한 비활성 타이머가 곧 만료한다고 결정할 수 있다.eNodeB 106 may determine 503 whether the inactivity timer for UE 102 is about to expire. The inactivity timer may be an inactivity timer executed by the inactive component 312. In one embodiment, the eNodeB 106 determines whether an inactivity timer expires in response to receiving 502 (502) information transmitted by the UE 102. [ The eNodeB 106 may determine that the inactivity timer for the UE will expire soon, based on whether the inactivity timer falls below a preconfigured threshold or reaches this threshold.

eNodeB(106)는 UE(102)에 대한 S1 및 UE 컨텍스트 해제를 MME(112)에 요청할 수 있다(504). eNodeB(106)는 UE(102)로부터의 보조 정보의 수신에 응답하여 S1 및 UE 컨텍스트 해제를 요청(504)하도록 구성될 수 있고/있거나, eNodeB(106)는 UE 비활성 타이머가 곧 만료한다는 결정(503)에 응답하여 S1 및 UE 컨텍스트 해제를 요청(504)하도록 구성될 수 있다. (eNodeB(106)에서 실행 중인) UE 비활성 타이머가 곧 만료한다면, eNodeB(106)는 S1 및 UE 컨텍스트 해제를 요청할 수 있다. 요청(504)은 보조 정보를 포함할 수 있다. 예를 들어, 저전력 표시 및/또는 타이머 길이가 요청(504)에 포함될 수 있다. 요청(504)은 S1 애플리케이션 프로토콜(S1-AP)을 이용하여 MME(112)에 송신될 수 있다. 일 실시예에서, eNodeB(106)는, (원인 = UE 저전력 소비 모드와 같은) 새로운 해제 원인을 나타내는 UE 컨텍스트 해제 요청 메시지를 송신함으로써 컨텍스트 해제를 요청한다(504).The eNodeB 106 may request the MME 112 to release S1 and UE context for the UE 102 (504). eNodeB 106 may be configured and / or configured to request (504) S1 and UE context deactivation in response to receiving assistance information from UE 102, or eNodeB 106 may determine that the UE inactivity timer expires 503 in response to the UE context request. If the UE inactivity timer (running in eNodeB 106) expires soon, eNodeB 106 may request S1 and UE context deactivation. The request 504 may include auxiliary information. For example, a low power indication and / or a timer length may be included in the request 504. The request 504 may be sent to the MME 112 using the S1 application protocol (S1-AP). In one embodiment, the eNodeB 106 requests (504) a context release by sending a UE context release request message indicating a new release cause (such as a cause = UE low power consumption mode).

MME(112) 및 SGW(118)는 컨텍스트 해제 요청의 수신에 응답하여 액세스 베어러 해제 절차(release access bearer procedure)를 수행한다(506). UE(102)와의 S1 세션을 해제하기 위해서 액세스 베어러 해제 절차가 수행될 수 있다(506). 예를 들어, MME(112) 및 SGW(118)는 3GPP TS 23.401 섹션 5.35에 개시된 S1 해제 절차를 수행할 수 있다. 해제 절차의 수행(506)은 MME(112)가 액세스 베어러 해제 요청을 송신하는 것을 포함할 수 있다. 예를 들어, 액세스 베어러 해제 요청은 UE에 대한 모든 S1-U 베어러들의 해제를 요청할 수 있다. 또한, 해제 절차의 수행(506)은 SGW(118)가 모든 eNodeB(106) 관련 정보의 해제를 확인하는 액세스 베어러 해제 응답 메시지를 송신하는 것을 포함할 수 있다.The MME 112 and the SGW 118 perform a release access bearer procedure in response to receiving the context release request (506). An access bearer release procedure may be performed 506 to release the S1 session with the UE 102. For example, the MME 112 and the SGW 118 may perform the S1 Release procedure disclosed in Section 5.35 of 3GPP TS 23.401. Performing the release procedure 506 may include that the MME 112 sends an access bearer release request. For example, an access bearer release request may request release of all S1-U bearers for the UE. In addition, performing the release procedure 506 may include sending an access bearer release response message that the SGW 118 confirms the release of all eNodeB 106 related information.

MME(112)는 UE(102)를 해제하라고 eNodeB(106)에 지시함으로써 UE(102)에 대한 S1의 해제를 명령한다(508). MME(112)는, 액세스 베어러 해제 절차의 수행(506)에 응답하여 컨텍스트 해제 커맨드 메시지를 eNodeB(106)에 제공함으로써 해제를 명령할 수 있다(508). 컨텍스트 해제 커맨드 메시지는 (원인 = UE 저전력 소비 모드와 같은) 해제의 원인을 표시할 수 있다. 컨텍스트 해제 커맨드는, DRX의 페이징을 위해 eNodeB(106) 및/또는 UE(102)를 구성하기 위한 비연속적 수신(DRX) 정보를 페이징하는 것을 포함할 수 있다. 일 실시예에서, DRX 페이징 정보는 UE(102)에 의해 제공되었던 타이머 길이에 기초한 타이머 길이를 포함할 수 있고/있거나, UE(102)에 의해 제공된 DRX 페이징 정보를 포함할 수 있다. 예를 들어, 타이머 길이는 보조 정보에서 UE(102)에 의해 제공된 타이머 길이와 동일할 수 있다. 일 실시예에서, MME(112)는 UE(102)를 긴 DRX 페이징 사이클에 두기 위해 긴 DRX 페이징 정보를 제공한다. 컨텍스트 DRX 페이징 정보는, 긴 DRX 사이클과, UE(102)에 의해 제공된 타이머 길이에 기초한 타이머 길이 양쪽 모두에 대한 정보를 포함할 수 있다. 예를 들어, 타이머 길이는 UE가 저전력 모드에 얼마나 오래 머물 것인지를 나타낼 수 있다.The MME 112 instructs the eNodeB 106 to release the UE 102 and instructs the UE 102 to release the S1 to the UE 102 (508). MME 112 may command release 508 by providing a context release command message to eNodeB 106 in response to performing 506 an access bearer release procedure. The de-context command message may indicate the cause of the release (cause = UE low power consumption mode). The de-context command may include paging discontinuous reception (DRX) information for configuring eNodeB 106 and / or UE 102 for DRX paging. In one embodiment, the DRX paging information may include a timer length based on the timer length that was provided by the UE 102 and / or may include the DRX paging information provided by the UE 102. For example, the timer length may be equal to the timer length provided by the UE 102 in the ancillary information. In one embodiment, the MME 112 provides long DRX paging information to place the UE 102 in a long DRX paging cycle. The context DRX paging information may include information on both a long DRX cycle and a timer length based on the timer length provided by the UE 102. [ For example, the timer length may indicate how long the UE will stay in the low power mode.

eNodeB(106)는 UE(102)와의 세션을 해제하기 위해 RRC 접속 해제 메시지를 UE(102)에 송신한다(510). 접속 해제 메시지는 UE(102) 상의 사용자 데이터 세션에 대한 베어러 또는 다른 정보를 해제하도록 UE(102)를 구성할 수 있다. 또한, UE(102)는 접속 상태로부터 유휴 또는 페이징 상태로 변경될 수 있다. MME(112)로부터 수신된 DRX 페이징(또는 긴 DRX 페이징) 정보를 포함한 접속 해제 메시지가 송신될 수 있다(510). DRX 페이징 정보는 인입하는 제어 또는 사용자 데이터를 UE(102)가 검사하는 페이징 간격을 정의할 수 있다. DRX 페이징 정보는, 초기에 UE(102)에 의해 결정되어 보조 정보에서 송신되는(502) 타이머 길이를 포함할 수 있다. 그러면, UE(102)는 UE(102)의 수신기 또는 다른 컴포넌트를 전원 오프하여, 타이머 길이 동안 저전력 모드에 진입할 수 있다.The eNodeB 106 sends an RRC Disconnect message to the UE 102 to release the session with the UE 102 (510). The disconnect message may configure the UE 102 to release the bearer or other information for the user data session on the UE 102. In addition, UE 102 may change from a connected state to an idle or paged state. A disconnect message containing DRX paging (or long DRX paging) information received from the MME 112 may be transmitted 510. DRX paging information may define a paging interval at which UE 102 examines incoming control or user data. The DRX paging information may include a timer length initially determined 502 by the UE 102 and transmitted 502 in the ancillary information. UE 102 may then power off the receiver or other component of UE 102 and enter a low power mode for a timer length.

또한, eNodeB(106)는 UE(102)가 해제되었다는 것을 표시하기 위해서 UE 컨텍스트 해제 완료 메시지를 MME(112)에 송신할 수 있다(512). 송신된(512) 메시지는 UE(102)의 S1 해제를 확인한다. 이는 해제된 UE(102)에 대한 MME(112)와 eNodeB(106) 사이의 시그널링 접속을 해제한다.The eNodeB 106 may also send 512 a UE Context Release Complete message to the MME 112 to indicate that the UE 102 has been released. The transmitted 512 message confirms the release of S1 of the UE 102. This releases the signaling connection between the MME 112 and the eNodeB 106 for the released UE 102.

MME(112)는 타이머 길이에 기초하여 타이머를 시작할 수 있다(514). MME(112)는, 타이머가 만료하고 UE(102)가 페이징에 이용가능할 때까지 페이징을 연기할 수 있다. 타이머는, UE(102)에 의해 정의된 길이 또는 MME(112)에서 정의되거나 HSS(114) 내의 UE 가입 데이터에 유지되고 연결 동안에 MME(112)에 다운로드되는 다른 길이로 시작될 수 있다(514). 일 실시예에서, 타이머는 eNodeB(106)에 의해 송신된(504) 컨텍스트 해제 요청의 수신 후에 시작될 수 있다(514).The MME 112 may start a timer based on the timer length (514). The MME 112 may defer paging until the timer has expired and the UE 102 is available for paging. The timer may start at 514 with a length defined by the UE 102 or another length defined in the MME 112 or maintained in the UE subscription data in the HSS 114 and downloaded to the MME 112 during the connection. In one embodiment, a timer may be initiated 514 after receipt of a context release request (504) sent by the eNodeB 106.

도 5의 타임라인(500)에 나타낸 방법 및 통신은, UE(102)에 의한 에너지 사용을 최대화하고/하거나 eNodeB(106), MME(112), SGW(118) 및/또는 통신 시스템(100)의 다른 부분들 상의 부하를 해제하는데 도움이 될 수 있다. 예를 들어, UE(102)가 타이머 길이를 선택하는 것을 허용함으로써, UE(102)가 저전력 상태에 머물 수 있는 시간량이 증가될 수 있다. 예를 들어, 일반적으로 통신 시스템(100)에 의해 정의되는 것보다 더 오래 저전력 상태에 있을 수 있다고 UE(102)가 결정한다면, UE(102)는 더 오래 슬립 상태에 머물 수 있다. 또한, 타이머 길이가 더 짧더라도, UE(102)는 저전력 모드에 진입하여, 다른 방식으로 가능하지 않을 수 있는 빈번한 페이징을 위한 요건을 여전히 유지할 수 있다. 예를 들어, UE(102)는 대신에 활성 모드 또는 접속 모드에 머물 수 있는데, 그 이유는 빈번한 페이징을 위한 요건이 유휴 또는 비접속 모드에서는 충족되지 않을 수 있기 때문이다. 또한, 통신 시스템(100)에 의한 UE(102)의 해제는 통신 시스템(100) 및 그 컴포넌트 상의 감소된 부하를 허용할 수 있다.The method and communication depicted in timeline 500 of FIG. 5 may be used to maximize energy usage by UE 102 and / or to maximize energy usage by eNodeB 106, MME 112, SGW 118, and / Lt; RTI ID = 0.0 > a < / RTI > For example, by allowing the UE 102 to select a timer length, the amount of time that the UE 102 can stay in a low power state can be increased. For example, if UE 102 determines that it can be in a low power state for longer than what is typically defined by communication system 100, UE 102 may stay in the sleep state longer. Also, even if the timer length is shorter, the UE 102 may enter the low power mode and still maintain the requirements for frequent paging, which may not be otherwise possible. For example, the UE 102 may stay in an active mode or an access mode instead, since the requirements for frequent paging may not be met in an idle or disconnected mode. In addition, release of UE 102 by communication system 100 may allow for reduced load on communication system 100 and its components.

도 6은 보조 정보를 처리하여 접속 모드의 긴 DRX 사이클에 UE(102)를 두기 위한 UE(102)와 eNodeB(106) 사이의 통신을 나타내는 통신 타임라인(600)의 도면이다.6 is a diagram of a communication timeline 600 illustrating communications between UE 102 and eNodeB 106 to process the assistance information to place UE 102 in a long DRX cycle of a connection mode.

eNodeB(106)와 UE(102)는 UE(102)에 대한 접속을 재구성한다(402). 접속의 재구성(402)은 도 4와 관련하여 논의된 것과 유사한 방식으로 수행될 수 있다.The eNodeB 106 and the UE 102 reconstruct the connection to the UE 102 (402). Reconfiguration 402 of the connection may be performed in a manner similar to that discussed with respect to FIG.

UE(102)는 UE(102)의 전력 선호사항을 표시하는 UE 보조 정보를 eNodeB(106)에 송신한다(404). UE(102)는 도 4 및/또는 도 5와 관련하여 표시되고 논의된 방식으로 보조 정보를 송신할 수 있다(404). 예를 들어, 보조 정보는 타이머 길이를 포함할 수도 있고 포함하지 않을 수도 있다.UE 102 sends 404 the UE ancillary information indicating the power preference of UE 102 to eNodeB 106. [ The UE 102 may transmit 404 the assistance information in the manner shown and discussed with respect to FIG. 4 and / or FIG. For example, the ancillary information may or may not include a timer length.

eNodeB(106)는 UE(102)에 대한 비활성 타이머가 곧 만료하는지를 결정할 수 있다(602). 비활성 타이머는 비활성 컴포넌트(312)에 의해 실행되는 비활성 타이머일 수 있다. 일 실시예에서, eNodeB(106)는, UE(102)에 의해 송신된(502) 보조 정보의 수신에 응답하여 비활성 타이머가 곧 만료하는지를 결정한다. eNodeB(106)는, 비활성 타이머가 미리 구성된 임계치 아래로 떨어지거나 이 임계치에 도달하는 것에 기초하여 UE에 대한 비활성 타이머가 곧 만료한다고 결정할 수 있다.eNodeB 106 may determine 602 whether the inactivity timer for UE 102 is about to expire. The inactivity timer may be an inactivity timer executed by the inactive component 312. In one embodiment, the eNodeB 106 determines whether an inactivity timer expires in response to receiving 502 (502) information transmitted by the UE 102. [ The eNodeB 106 may determine that the inactivity timer for the UE will expire soon, based on whether the inactivity timer falls below a preconfigured threshold or reaches this threshold.

eNodeB(106)는 긴 DRX 동안 UE(102)와의 접속을 재구성한다(604). eNodeB(106)는, UE(102)로부터 보조 정보를 수신하는 것에 응답하여 그리고/또는 비활성 타이머가 곧 만료한다는 결정에 기초하여 접속을 재구성할 수 있다(604). (eNodeB(106)에서 실행 중인) UE 비활성 타이머가 곧 만료한다면, eNodeB(106)는 긴 DRX 동안 UE(102)와의 접속을 재구성한다(604). 긴 DRX 사이클은, UE(102)가 접속해제되거나 유휴 또는 페이징 모드에 두어질 필요가 없도록 접속 모드 DRX 사이클을 포함할 수 있다. eNodeB(106)는 접속 모드에 대한 긴 DRX 정보를 포함하는 RRC 접속 재구성 메시지를 송신할 수 있다. 긴 DRX 정보는, 일반적으로 먼저 진입되는 짧은 DRX 사이클보다 더 긴 DRX 사이클을 포함할 수 있고, 그에 따라 증가된 전력 절감을 초래할 수 있다. 예를 들어, 재구성 방법 메시지는, UE(102)로 하여금, 짧은 DRX 사이클 동안 저전력 모드에 먼저 진입하지 않고 긴 DRX 사이클에 따라 저전력 모드에 진입하게 할 수 있다. UE(102)는 긴 DRX 사이클을 따르도록 그 접속 설정을 재구성할 수 있다.The eNodeB 106 reconfigures (604) the connection with the UE 102 during a long DRX. eNodeB 106 may reconfigure (604) the connection in response to receiving assistance information from UE 102 and / or based on a determination that an inactivity timer is about to expire. If the UE inactivity timer (running at the eNodeB 106) expires soon, the eNodeB 106 reconfigures 604 the connection with the UE 102 during a long DRX. The long DRX cycle may include a connected mode DRX cycle such that UE 102 need not be disconnected or placed in idle or paging mode. eNodeB 106 may send an RRC connection reconfiguration message that includes long DRX information for the connection mode. Long DRX information may include a DRX cycle that is longer than a short DRX cycle, which typically enters first, and may result in increased power savings. For example, the reconfiguration method message may cause UE 102 to enter a low power mode according to a long DRX cycle without first entering the low power mode for a short DRX cycle. UE 102 may reconfigure its connection settings to follow a long DRX cycle.

일 실시예에 따르면, 보조 정보의 수신에 응답하여 UE(102)를 긴 DRX 사이클에 둠으로써, UE(102)에서의 배터리 사용 및 eNodeB(106) 상의 부하가 감소될 수 있다. 예를 들어, UE(102)는 먼저 짧은 DRX 사이클에 진입한 다음에 긴 DRX 사이클에 진입하기 전에 소정 기간 동안 대기할 필요가 없을 수 있다. 긴 DRX 사이클이 UE(102)가 더 낮은 전력 모드에서 보낼 수 있는 시간량을 증가시키고 eNodeB(106)에 의해 핸들링하거나 송신되어야 하는 메시지의 빈도 및/또는 개수를 감소시킬 수 있기 때문에, 상당한 에너지 및 부하 절감이 생길 수 있다.According to one embodiment, by placing UE 102 in a long DRX cycle in response to receiving assistance information, battery usage at UE 102 and load on eNodeB 106 may be reduced. For example, the UE 102 may not need to wait for a predetermined period of time before entering a short DRX cycle before entering a long DRX cycle. Because a long DRX cycle can increase the amount of time that UE 102 can send in the lower power mode and reduce the frequency and / or number of messages that must be handled or transmitted by eNodeB 106, The load can be reduced.

도 7은 보조 정보를 처리하여 UE(102)에 대한 다운링크 패킷들을 버퍼링하기 위한 UE(102), eNodeB(106), MME(112) 및 SGW(118) 사이의 통신을 나타내는 통신 타임라인(700)의 도면이다.FIG. 7 illustrates a communication timeline 700 (FIG. 7A) that represents communication between UE 102, eNodeB 106, MME 112 and SGW 118 to process the assistance information to buffer downlink packets for UE 102 FIG.

eNodeB(106)와 UE(102)는 UE(102)에 대한 접속을 재구성한다(402). 접속의 재구성(402)은 도 4와 관련하여 논의된 것과 유사한 방식으로 수행될 수 있다.The eNodeB 106 and the UE 102 reconstruct the connection to the UE 102 (402). Reconfiguration 402 of the connection may be performed in a manner similar to that discussed with respect to FIG.

UE(102)는 UE(102)의 전력 선호사항을 표시하는 UE 보조 정보를 eNodeB(106)에 송신한다(404). UE(102)는 도 4 및 도 5와 관련하여 표시되고 논의된 방식으로 보조 정보를 송신할 수 있다(404). 예를 들어, 보조 정보는 타이머 길이를 포함할 수도 있고 포함하지 않을 수도 있다.UE 102 sends 404 the UE ancillary information indicating the power preference of UE 102 to eNodeB 106. [ The UE 102 may transmit 404 the assistance information in the manner shown and discussed with respect to Figures 4 and 5. For example, the ancillary information may or may not include a timer length.

eNodeB(106)는 UE(102)에 의한 저전력 요청을 MME(112)에 통보한다(702). eNodeB(106)는 저전력 표시자를 포함하는 UE 저전력 요청 메시지를 MME(112)에 제공함으로써 UE의 저전력 선호사항을 MME(112)에 통보할 수 있다(702). UE 저전력 요청 메시지는 S1 애플리케이션 프로토콜 내에 정의된 메시지일 수 있고, UE(102)에 의해 제공되는 보조 정보로부터의 정보를 포함하도록 구성될 수 있다.The eNodeB 106 notifies the MME 112 of a low power request by the UE 102 (702). The eNodeB 106 may notify the MME 112 of the UE's low power preference by providing the UE low power request message including a low power indicator to the MME 112 (702). The UE low power request message may be a message defined in the S1 application protocol and may be configured to include information from the assistance information provided by the UE 102. [

MME(112)는 저전력 요청을 SGW(118)에 포워딩한다(704). MME(112)는 변경 통보 요청 메시지(Change Notification Request) 내에서 저전력 요청을 SGW(118)에 포워딩할 수 있다(704). 변경 통보 요청은, 보조 정보를 포함하도록 향상된 GTP-C 메시지 또는 새로운 GTP-C 메시지와 같은 GPRS 터널링 프로토콜 메시지일 수 있다.The MME 112 forwards the low power request to the SGW 118 (704). The MME 112 may forward 704 a low power request to the SGW 118 within a Change Notification Request. The change notification request may be a GPRS tunneling protocol message such as an enhanced GTP-C message or a new GTP-C message to include auxiliary information.

변경 통보 요청의 수신에 응답하여, SGW(118)는 UE(102)에 대한 다운링크 패킷들의 버퍼링(706)을 시작할 수 있다. 일 실시예에서, UE에 의해 송신된(404) 보조 정보가 타이머 길이를 포함한다면, SGW(118)는 타이머 길이 동안 다운링크 패킷들을 버퍼링한(706) 다음, 타이머가 만료하면 다운링크 패킷들을 송신한다. 이것은, UE(102)가 개재되는 시간 동안에 저전력 모드에 진입한 다음에 버퍼링된 패킷들의 수신에 이용가능하게 되는 것을 허용할 수 있다. 다른 실시예에서, 이전에 협의되거나 구성된 타이머 길이가 이용되는데, 그 동안에 SGW(118)가 다운링크 패킷들을 버퍼링(706)하고 UE(102)가 저전력 모드에 진입한다.In response to receiving the change notification request, the SGW 118 may begin buffering 706 downlink packets to the UE 102. In one embodiment, if the auxiliary information 404 transmitted by the UE includes a timer length, the SGW 118 buffers downlink packets for a timer length (706), then transmits downlink packets when the timer expires do. This may allow UE 102 to become available for reception of buffered packets after entering the low power mode during the intervening time. In another embodiment, a previously negotiated or configured timer length is used, during which the SGW 118 buffers 706 downlink packets and UE 102 enters a low power mode.

일 실시예에서, UE(102)는 유휴 또는 페이징 모드에 진입하는 것이 요구되지 않고, 단순히 감소된 개수의 수신된 패킷으로 인해 배터리 사용을 감소시킨다. 다운링크 패킷들을 버퍼링하는 것은, 일부 실시예에서, 전력 소비를 감소시키면서 UE(102)가 접속 모드와 유휴 모드 사이에서 토글링하는 것을 방지할 수 있다. 예를 들어, 접속 및 해제 절차를 반복적으로 수행하는 것은 통신 시스템(100) 상의 부하를 증가시킬 수 있고/있거나, UE(102)에서의 에너지 소비를 증가시킬 수 있다.In one embodiment, UE 102 is not required to enter an idle or paging mode, and simply reduces battery usage due to a reduced number of received packets. Buffering the downlink packets may, in some embodiments, prevent UE 102 from toggling between the connected mode and the idle mode while reducing power consumption. For example, repeatedly performing the connection and release procedures may increase the load on the communication system 100 and / or may increase the energy consumption at the UE 102.

도 8은 보조 정보를 처리하여 핸드오버 임계치를 감소시키기 위한 방법(800)의 플로우차트이다. 이 방법(800)은 eNodeB(106) 또는 통신 시스템(100)의 다른 컴포넌트에 의해 수행될 수 있다.8 is a flowchart of a method 800 for processing the assistance information to reduce the handover threshold. The method 800 may be performed by the eNodeB 106 or other components of the communication system 100.

eNodeB(106)는 UE(102)로부터 보조 정보를 수신한다(802). 보조 정보는 저전력 선호사항 표시를 포함한다. eNodeB(106)는 도 4, 5, 6 및/또는 7에 표시된 방식으로 보조 정보를 수신할 수 있다(802). 예를 들어, eNodeB(106)는, 저전력 모드를 선호한다고 UE(102)가 결정하는 것에 응답하여 UE(102)에 의해 송신된 보조 정보를 수신할 수 있다(802).eNodeB 106 receives assistance information from UE 102 (802). The supplementary information includes a low power preference indication. The eNodeB 106 may receive 802 (802) in the manner indicated in Figures 4, 5, 6 and / or 7. For example, the eNodeB 106 may receive (802) the assistance information transmitted by the UE 102 in response to the UE 102 determining that it prefer a low power mode.

eNodeB(106)는 UE(102)에 대한 비활성 타이머가 곧 만료한다고 결정한다(804). 예를 들어, eNodeB(106)의 비활성 컴포넌트(312)에 의해 시작된 비활성 타이머는 임계 만료 시간 내에 있을 수 있다. 일 실시예에서, 비활성 타이머는, UE(102)가 저전력 모드에 배치되어야 할 때 또는 UE(102)와의 접속이 해제될 수 있는 때를 결정하는데 이용된다. 따라서, 비활성 타이머가 곧 만료한다면, UE(102)는 곧 해제될 수 있다.eNodeB 106 determines 804 that the inactivity timer for UE 102 is about to expire. For example, an inactivity timer initiated by the inactive component 312 of the eNodeB 106 may be within a threshold expiration time. In one embodiment, the inactivity timer is used to determine when the UE 102 should be placed in a low power mode or when the connection with the UE 102 can be released. Thus, if the inactivity timer expires soon, the UE 102 may soon be released.

eNodeB(106)는 UE(102)의 신호 강도가 핸드오버 임계치 부근이라고 결정한다(806). 예를 들어, 핸드오버 컴포넌트(310)는, UE(102)의 신호 강도에 기초하여 UE(102)에 대한 통신 세션을 핸드오버하거나 이전하기 위한 타이밍을 정의할 수 있다. 일 실시예에서, UE(102)의 신호 강도가 핸드오버 임계치 부근이라면, UE(102)의 핸드오버가 임박할 수 있다. eNodeB(106)는, 신호 강도가 핸드오버 임계치의 정의된 dB 또는 RSSI 범위 내에 있는지를 결정함으로써(806) 신호 강도가 핸드오버 임계치 부근이라고 결정할 수 있다(806).eNodeB 106 determines that the signal strength of UE 102 is near the handover threshold (806). For example, the handover component 310 may define a timing for handing over or relocating a communication session to the UE 102 based on the signal strength of the UE 102. [ In one embodiment, if the signal strength of the UE 102 is near the handover threshold, handover of the UE 102 may be imminent. The eNodeB 106 may determine 806 that the signal strength is near the handover threshold by determining 806 whether the signal strength is within a defined dB or RSSI range of the handover threshold (806).

비활성 타이머가 곧 만료한다고 결정하는 것(804) 및 신호 강도가 핸드오버 임계치 부근이라고 결정하는 것(806)에 응답하여, eNodeB(106)는 UE(102)에 대한 핸드오버 임계치를 감소시킬 수 있다(808). 예를 들어, UE(102)의 핸드오버 또는 이전이 지연되도록, UE(102)에 대한 핸드오버 절차를 트리거하는 신호 강도가 감소될 수 있다.The eNodeB 106 may reduce the handover threshold for the UE 102 in response to determining that the inactivity timer is about to expire (804) and determining that the signal strength is near the handover threshold (806) (808). For example, the signal strength that triggers the handover procedure for the UE 102 may be reduced such that the handover or transfer of the UE 102 is delayed.

도 9는 핸드오버 임계치의 감소(808)를 나타내는 신호 강도 그래프(900)이다. 신호 강도 그래프(900)는 현재의 노드에 대한 제1 신호 강도(902)와 다음의 노드에 대한 제2 신호 강도(904)를 도시한다. 신호 강도 그래프(900)는 시간에 따른 신호 강도(RSSI)를 나타낸다. 도시된 바와 같이, 현재의 노드에 대한 제1 신호 강도(902)는 시간에 따라 감소하고 있는 한편, 제2 신호 강도(904)는 UE(102)의 이동으로 인해 시간에 따라 증가하고 있다. 따라서, 제1 eNodeB로부터 제2 eNodeB로 또는 제1 셀로부터 제2 셀로와 같이, 시간에 따라 현재의 노드로부터 다음의 노드로 스위칭하는 것이 필요하고/하거나 바람직할 것이다.9 is a signal strength graph 900 showing a decrease 808 of the handover threshold. The signal strength graph 900 shows the first signal strength 902 for the current node and the second signal strength 904 for the next node. The signal strength graph 900 represents the signal intensity (RSSI) over time. As shown, the first signal strength 902 for the current node is decreasing with time, while the second signal strength 904 is increasing with time due to the movement of the UE 102. Thus, it may be necessary and / or desirable to switch from the current node to the next node over time, such as from the first eNodeB to the second eNodeB or from the first cell to the second cell.

또한, 신호 강도 그래프(900)는 원래의 핸드오버 임계치(906)와 감소된 핸드오버 임계치(908)를 나타낸다. 원래의 핸드오버 임계치(906)는, 핸드오버가 발생해야 하는 때에 대해 통신 시스템(100)에 의해 정의된 임계 신호 강도일 수 있다. 일 실시예에서, eNodeB(106)가 핸드오버 임계치를 감소시킬 때(808), 핸드오버 임계치는 원래의 핸드오버 임계치(906)로부터 감소된 핸드오버 임계치(908)로 감소된다. 핸드오버 임계치를 감소시키는 것(808)은 UE(102)를 핸드오버하는 것에 대한 지연된 타이밍을 초래한다. 예를 들어, 원래의 핸드오버 임계치(906)가 제1 신호 강도(902)와 교차하는 경우에 핸드오버되는 것이 아니라, UE(102)는, 감소된 핸드오버 임계치(908)가 제1 신호 강도(902)와 교차하는 시간(910)까지, UE(102)가 접속 또는 활성 모드에 머무는 경우에만(또는 그 때까지) 핸드오버될 것이다.The signal strength graph 900 also shows the original handover threshold 906 and the reduced handover threshold 908. The original handover threshold 906 may be the critical signal strength defined by the communication system 100 when a handover should occur. In one embodiment, when the eNodeB 106 decreases the handover threshold (808), the handover threshold is reduced from the original handover threshold (906) to the reduced handover threshold (908). Decreasing the handover threshold 808 results in a delayed timing for handing over the UE 102. For example, rather than being handed over when the original handover threshold 906 crosses the first signal strength 902, the UE 102 determines if the reduced handover threshold 908 is greater than the first signal strength 902 (Or until then) until the UE 102 remains in a connected or active mode until a time 910 that intersects the base station 902.

비활성 타이머가 곧 만료하고 신호 강도가 핸드오버 임계치 부근에 있기 때문에, eNodeB(106)는 핸드오버 절차를 완전히 스킵할 수 있다. 이것은 eNodeB(106) 상의 부하를 감소시키고 UE(102)에서의 에너지 소비를 감소시킬 수 있는데, 그 이유는 불필요한 핸드오버 절차를 위한 시그널링이 회피되기 때문이다.Because the inactivity timer expires soon and the signal strength is near the handover threshold, the eNodeB 106 may skip the handover procedure completely. This may reduce the load on the eNodeB 106 and reduce the energy consumption at the UE 102, since signaling for unnecessary handover procedures is avoided.

일 실시예에서, 방법(800)은 UE(102)의 이동성에 대한 검사 및/또는 eNodeB(106)의 부하에 대한 검사를 또한 포함할 수 있다.In one embodiment, the method 800 may also include checking for mobility of the UE 102 and / or checking for a load on the eNodeB 106. [

도 10은 보조 정보를 수신하는 것에 응답하여 UE(102)와의 접속을 해제하기 위한 UE(102)와 eNodeB(106) 사이의 통신을 나타내는 통신 타임라인(1000)의 도면이다.10 is a diagram of a communication timeline 1000 that illustrates communication between UE 102 and eNodeB 106 to release a connection with UE 102 in response to receiving assistance information.

eNodeB(106)와 UE(102)는 UE(102)에 대한 접속을 재구성한다(402). 접속의 재구성(402)은 도 4와 관련하여 논의된 것과 유사한 방식으로 수행될 수 있다.The eNodeB 106 and the UE 102 reconstruct the connection to the UE 102 (402). Reconfiguration 402 of the connection may be performed in a manner similar to that discussed with respect to FIG.

UE(102)는 UE(102)의 전력 선호사항을 표시하는 UE 보조 정보를 eNodeB(106)에 송신한다(404). UE(102)는 도 4 및 도 5와 관련하여 표시되고 논의된 방식으로 보조 정보를 송신할 수 있다(404). 예를 들어, 보조 정보는 타이머 길이를 포함할 수도 있고 포함하지 않을 수도 있다.UE 102 sends 404 the UE ancillary information indicating the power preference of UE 102 to eNodeB 106. [ The UE 102 may transmit 404 the assistance information in the manner shown and discussed with respect to Figures 4 and 5. For example, the ancillary information may or may not include a timer length.

eNodeB(106)는 eNodeB(106)가 과부하되어 있다고 결정한다(1002). 예를 들어, eNodeB(106)의 부하 컴포넌트(314)는, eNodeB(106)가 정의된 기간에 핸들링할 수 있는 것보다 많은 메시지나 요청을 수신하고 있다고 결정할 수 있다.eNodeB 106 determines 1002 that eNodeB 106 is overloaded. For example, the load component 314 of the eNodeB 106 may determine that the eNodeB 106 is receiving more messages or requests than can be handled in the defined time period.

eNodeB(106)가 과부하되어 있다는 결정(1002)에 응답하여, eNodeB(106)는 UE(102)와의 접속을 해제한다(1004). 예를 들어, eNodeB(106)는 도 5와 관련하여 표시된 것과 유사한 방식으로 UE(102)를 해제할 수 있다(1004).In response to decision 1002 that the eNodeB 106 is overloaded, the eNodeB 106 disconnects 1004 from the UE 102. For example, the eNodeB 106 may release the UE 102 in a manner similar to that shown with respect to FIG. 5 (1004).

대기 기간에 이어, UE(102)는 eNodeB(106) 또는 다른 eNodeB(106)와의 접속 확립을 시도할 수 있다(1006). 대기 기간은 eNodeB(106) 또는 통신 시스템(100)에 의해 UE(102)에 제공되는 정의된 기간일 수 있거나, 또는 UE(102)가 통신 시스템(100)으로의 액세스를 필요로 할 때까지의 무작위 시간량일 수 있다. 예를 들어, UE(102)에서의 사용자 이벤트 또는 다른 이벤트는 통신 시스템(100)에 대한 접속을 개시할 수 있다.Following the waiting period, the UE 102 may attempt to establish a connection with the eNodeB 106 or another eNodeB 106 (1006). The waiting period may be a defined period provided by the eNodeB 106 or the communication system 100 to the UE 102 or may be a period of time until the UE 102 needs access to the communication system 100 It can be a random amount of time. For example, a user event or other event at the UE 102 may initiate a connection to the communication system 100.

일 실시예에 따르면, eNodeB(106)가 과부하되어 있을 때 저전력 모드를 요청하는 UE(102)의 해제는, 서비스를 요청하고 있는 UE(102)에 대해 eNodeB(106)가 더 양호한 서비스를 제공하는 것을 도울 수 있다. 예를 들어, 많은 수의 UE(102)가 동일한 eNodeB(106) 상에 있다면, eNodeB(106)는 과부하될 수 있고, UE(102)에 의한 모든 호출 또는 데이터 요청을 지원하지 못할 수 있다. 저전력 모드를 요청하고 있으며, 아마도 음성이나 데이터 접속을 위한 사용자 요청에 대한 신속한 응답이나 데이터에 대한 매우 강한 필요성을 갖지 않는 UE(102)를 해제함으로써, eNodeB(106)는 어느 UE(102)가 진정으로 능동적 사용 중에 있는지를 우선순위화하여, 그에 따라 그들의 요구를 먼저 충족시킬 수 있다.According to one embodiment, releasing the UE 102 requesting a low power mode when the eNodeB 106 is overloaded may cause the eNodeB 106 to provide a better service to the UE 102 requesting the service Can help. For example, if a large number of UEs 102 are on the same eNodeB 106, the eNodeB 106 may be overloaded and may not support all calls or data requests by the UE 102. By releasing the UE 102 which is requesting a low power mode and which does not have a fast response to a user request for voice or data access or a very strong need for data, the eNodeB 106 can determine which UE 102 is calm The user can prioritize whether he or she is in active use and meet their needs accordingly.

도 11은 UE(102)가 새로운 셀 또는 eNodeB(106)로 핸드오버되지 않아야 한다고 결정하기 위한 UE(102)와 eNodeB(106) 사이의 통신을 나타내는 통신 타임라인(1100)의 도면이다.11 is a drawing of a communication timeline 1100 that illustrates communication between UE 102 and eNodeB 106 to determine that UE 102 should not be handed over to a new cell or eNodeB 106. [

eNodeB(106)와 UE(102)는 UE(102)에 대한 접속을 재구성한다(402). 접속의 재구성(402)은 도 4와 관련하여 논의된 것과 유사한 방식으로 수행될 수 있다.The eNodeB 106 and the UE 102 reconstruct the connection to the UE 102 (402). Reconfiguration 402 of the connection may be performed in a manner similar to that discussed with respect to FIG.

UE(102)는 UE(102)의 전력 선호사항을 표시하는 UE 보조 정보를 eNodeB(106)에 송신한다(404). UE(102)는 도 4 및 도 5와 관련하여 표시되고 논의된 방식으로 보조 정보를 송신할 수 있다(404). 예를 들어, 보조 정보는 타이머 길이를 포함할 수도 있고 포함하지 않을 수도 있다.UE 102 sends 404 the UE ancillary information indicating the power preference of UE 102 to eNodeB 106. [ The UE 102 may transmit 404 the assistance information in the manner shown and discussed with respect to Figures 4 and 5. For example, the ancillary information may or may not include a timer length.

보조 정보를 수신하는 것에 응답하여, eNodeB(106)는, UE(102)가 다음의 셀이나 eNodeB(106)로 핸드오버되지 않을 것이라고 결정한다(1102). 예를 들어, eNodeB(106)는 단순히 UE(102)와의 접속을 해제함으로써 핸드오버 시그널링을 절감할 수 있다. UE(102)가 핸드오버되지 않을 것이라는 결정(1102)은 보조 정보에만 기초하여 이루어질 수 있거나, 또는 UE(102)의 이동성, eNodeB(106)의 부하 등과 관련하여 이루어질 수 있다. 예를 들어, eNodeB(106)는, 현재의 eNodeB(106)가 과부하되어 있다는 것에 기초하여 그리고/또는 다음이나 타겟 eNodeB(106)가 과부하되어 있다는 것에 기초하여 어떠한 핸드오버도 이루어지지 않을 것이라고 결정할 수 있다(1102).In response to receiving the assistance information, the eNodeB 106 determines 1102 that the UE 102 will not be handed over to the next cell or eNodeB 106. For example, eNodeB 106 may reduce handover signaling by simply disconnecting from UE 102. The decision 1102 that the UE 102 is not to be handed over may be based solely on the assistance information or may be made with respect to the mobility of the UE 102, the load on the eNodeB 106, and so on. For example, the eNodeB 106 may determine that no handover will be made based on whether the current eNodeB 106 is overloaded and / or based on whether the next or target eNodeB 106 is overloaded (1102).

eNodeB(106)는 UE(102)와의 접속을 해제한다(1104). 예를 들어, eNodeB(106)는 도 10의 해제(1004)와 관련하여 표시된 것과 유사하거나 도 5의 방법과 유사한 방식으로 UE(102)를 해제할 수 있다(1104).The eNodeB 106 releases the connection with the UE 102 (1104). For example, the eNodeB 106 may release 1102 the UE 102 in a manner similar to that shown in connection with the release 1004 of FIG. 10 or the method of FIG.

그러면, UE(102)는 RRC 접속 해제(1104)에 응답하여 유휴 모드(RRC_IDLE)에 진입할 수 있다(1106).Then, the UE 102 may enter the idle mode (RRC_IDLE) 1106 in response to the RRC disconnect 1104.

도 12는 사용자 장비(UE), 이동국(MS), 모바일 무선 장치, 모바일 통신 장치, 태블릿, 핸드셋, 또는 다른 타입의 모바일 무선 장치와 같은 모바일 장치의 예시를 제공한다. 모바일 장치는, 기지국(BS), eNodeB(evolved Node B), BBU(base band unit), RRH(remote radio head), RRE(remote radio equipment), RS(relay station), RE(radio equipment) 또는 다른 타입의 무선 광역 네트워크(WWAN: wireless wide area network) 액세스 포인트와 같은 전송국과 통신하도록 구성된 하나 이상의 안테나를 포함할 수 있다. 모바일 장치는, 3GPP LTE, WiMAX, HSPA(High Speed Packet Access), Bluetooth 및 WiFi를 포함하는 적어도 하나의 무선 통신 표준을 이용하여 통신하도록 구성될 수 있다. 모바일 장치는, 각각의 무선 통신 표준을 위한 별개의 안테나 또는 복수의 무선 통신 표준을 위한 공유된 안테나를 사용하여 통신할 수 있다. 모바일 장치는, WLAN(wireless local area network), WPAN(wireless personal area network) 및/또는 WWAN에서 통신할 수 있다.12 provides an illustration of a mobile device, such as a user equipment (UE), a mobile station (MS), a mobile radio device, a mobile communication device, a tablet, a handset, or other type of mobile radio device. The mobile device may be a base station (BS), an evolved Node B (eNodeB), a base band unit (BBU), a remote radio head (RRH), a remote radio equipment (RRE) Type wireless wide area network (WWAN) access point. ≪ RTI ID = 0.0 > [0035] < / RTI > The mobile device may be configured to communicate using at least one wireless communication standard, including 3GPP LTE, WiMAX, High Speed Packet Access (HSPA), Bluetooth and WiFi. The mobile device may communicate using a separate antenna for each wireless communication standard or a shared antenna for multiple wireless communication standards. The mobile device may communicate in a wireless local area network (WLAN), a wireless personal area network (WPAN), and / or a WWAN.

또한, 도 12는 모바일 장치로부터의 오디오 입력 및 출력에 사용될 수 있는 마이크로폰과 하나 이상의 스피커의 예시를 제공한다. 디스플레이 스크린은 액정 디스플레이(LCD) 스크린, 또는 OLED(organic light emitting diode) 디스플레이와 같은 다른 타입의 디스플레이 스크린일 수 있다. 디스플레이 스크린은 터치 스크린으로서 구성될 수 있다. 터치 스크린은, 용량식, 저항식 또는 다른 타입의 터치 스크린 기술을 이용할 수 있다. 애플리케이션 프로세서 및 그래픽 프로세서는 내부 메모리에 결합되어, 처리 및 디스플레이 능력을 제공할 수 있다. 데이터 입력/출력 옵션을 사용자에 제공하기 위해서 비휘발성 메모리 포트가 또한 사용될 수 있다. 비휘발성 메모리 포트는 또한 모바일 장치의 메모리 능력을 확장하는데 사용될 수 있다. 키보드가 모바일 장치와 통합되거나 모바일 장치에 무선으로 접속되어, 추가의 사용자 입력을 제공할 수 있다. 가상 키보드도 또한 터치 스크린을 사용하여 제공될 수 있다.Figure 12 also provides an example of a microphone and one or more speakers that can be used for audio input and output from a mobile device. The display screen may be a liquid crystal display (LCD) screen, or other type of display screen, such as an organic light emitting diode (OLED) display. The display screen may be configured as a touch screen. The touch screen may employ capacitive, resistive or other types of touch screen technology. The application processor and graphics processor may be coupled to an internal memory to provide processing and display capabilities. A non-volatile memory port may also be used to provide the user with a data input / output option. A non-volatile memory port may also be used to extend the memory capabilities of the mobile device. The keyboard may be integrated with the mobile device or wirelessly connected to the mobile device to provide additional user input. A virtual keyboard can also be provided using a touch screen.

예들Examples

이하의 예들은 추가 실시예에 관한 것이다.The following examples relate to further embodiments.

예 1은, eNodeB에 접속된 UE에 접속 재구성 메시지를 제공하는 eNodeB이다. 접속 재구성 메시지는 전력 선호사항을 표시하도록 UE를 구성한다. eNodeB는 UE로부터 보조 정보를 수신한다. 보조 정보는 저전력 선호사항 표시 및 타이머 길이를 포함한다. 타이머 길이는 저전력 모드에 대한 선호되는 지속기간을 나타낸다. eNodeB는, 보조 정보를 수신하는 것에 응답하여, 접속 해제 메시지를 UE에 제공한다. 접속 해제 메시지는 타이머 길이를 포함한다.Example 1 is an eNodeB that provides a connection reconfiguration message to a UE connected to an eNodeB. The connection reconfiguration message configures the UE to display power preferences. The eNodeB receives assistance information from the UE. The supplemental information includes a low power preference indication and a timer length. The timer length represents the preferred duration for the low power mode. The eNodeB, in response to receiving the assistance information, provides a disconnect message to the UE. The disconnect message includes a timer length.

예 2에서, 예 1의 eNodeB는, 선택적으로, 저전력 선호사항 표시 및 타이머 길이를 포함하는 컨텍스트 해제 요청을 MME에 제공할 수 있다.In Example 2, the eNodeB of Example 1 may optionally provide a context release request to the MME that includes a low power preference indication and a timer length.

예 3에서, 예 1 및 2의 eNodeB는, 선택적으로, MME 및 SGW에 의한 액세스 베어러 해제 절차의 수행을 개시하도록 컨텍스트 해제 요청을 MME에 제공할 수 있다.In Example 3, the eNodeBs of Examples 1 and 2 may optionally provide a context release request to the MME to initiate the performance of the access bearer release procedure by the MME and the SGW.

예 4에서, 예 1-3의 eNodeB는, 선택적으로, MME로부터 컨텍스트 해제 커맨드를 수신하는 것에 응답하여 접속 해제 메시지를 UE에 제공할 수 있다. 컨텍스트 해제 커맨드는 액세스 베어러 해제 절차의 수행을 표시할 수 있다. 컨텍스트 해제 커맨드는, DRX 페이징 사이클의 길이를 포함하는 DRX 페이징 정보를 포함할 수 있고, UE가 얼마나 오래 저전력 모드에 머물 것인지를 나타내는 타이머 길이를 더 포함할 수 있다.In Example 4, the eNodeB of Example 1-3 may optionally provide a disconnect message to the UE in response to receiving a context release command from the MME. The de-context command may indicate the performance of the access bearer release procedure. The de-context command may include DRX paging information including the length of the DRX paging cycle and may further include a timer length indicating how long the UE will stay in the low power mode.

예 5에서, 예 1-4의 eNodeB는, 선택적으로, UE로의 페이징을 연기하기 위해서 타이머 길이 동안 MME에서 타이머를 개시하도록 타이머 길이를 포함하는 컨텍스트 해제 요청을 제공할 수 있다.In Example 5, the eNodeB of Example 1-4 may optionally provide a context release request that includes a timer length to initiate a timer in the MME for a timer length to defer paging to the UE.

예 6에서, 예 1-5의 eNodeB는, 선택적으로, eNodeB가 과부하되어 있다고 결정할 수 있다. eNodeB가 과부하되어 있다고 결정하는 것에 응답하여, 접속 해제 메시지가 UE에 제공될 수 있다.In Example 6, the eNodeB of Examples 1-5 may optionally determine that the eNodeB is overloaded. In response to determining that the eNodeB is overloaded, a disconnect message may be provided to the UE.

예 7에서, 예 1-6의 eNodeB는, 선택적으로, 타이머 길이 동안 SGW에서 UE에 대한 다운링크 패킷들을 버퍼링하기 위해 저전력 표시 및 타이머 길이를 SGW에 제공할 수 있다.In Example 7, the eNodeB of Examples 1-6 may optionally provide a low power indication and a timer length to the SGW to buffer downlink packets for the UE in the SGW for a timer length.

예 8에서, 예 1-7의 eNodeB는, 선택적으로, 시간 길이 이후에 UE에 대한 버퍼링된 다운링크 패킷들을 수신하고, 버퍼링된 다운링크 패킷들을 UE에 제공할 수 있다.In Example 8, the eNodeB of Examples 1-7 may optionally receive buffered downlink packets for the UE after a time length and provide buffered downlink packets to the UE.

예 9는, 트랜시버 컴포넌트, 보조 정보 컴포넌트 및 전력 모드 컴포넌트를 포함하는 UE이다. 트랜시버 컴포넌트는 무선 기지국으로부터 제1 RRC 접속 재구성 메시지를 수신하도록 구성된다. 제1 RRC 접속 재구성 메시지는 전력 선호사항을 표시하도록 UE를 재구성한다. 보조 정보 컴포넌트는 보조 정보를 무선 기지국에 제공하도록 구성된다. 보조 정보는 저전력 선호사항 표시를 포함한다. 전력 모드 컴포넌트는 UE의 전력 모드를 제어하도록 구성된다. 트랜시버 컴포넌트는, 보조 정보를 제공하는 것에 응답하여, 긴 DRX 사이클을 나타내는 DRX 정보를 포함하는 제2 RRC 접속 재구성 메시지를 수신하도록 또한 구성된다.Example 9 is a UE comprising a transceiver component, an auxiliary information component and a power mode component. The transceiver component is configured to receive a first RRC connection reconfiguration message from the wireless base station. The first RRC connection reconfiguration message reconfigures the UE to indicate power preferences. The auxiliary information component is configured to provide auxiliary information to the radio base station. The supplementary information includes a low power preference indication. The power mode component is configured to control the power mode of the UE. The transceiver component is also configured to receive a second RRC connection reconfiguration message comprising DRX information indicative of a long DRX cycle, in response to providing assistance information.

예 10에서, 예 9의 전력 모드 컴포넌트는, 선택적으로, 제2 RRC 접속 재구성 메시지를 수신하는 것에 응답하여, UE로 하여금 먼저 짧은 DRX 사이클 동안 저전력 모드에 진입하지 않고 긴 DRX 사이클에 따라 저전력 모드에 진입하게 하도록 구성된다.In example 10, the power mode component of example 9, optionally in response to receiving a second RRC connection reconfiguration message, causes the UE to enter a low power mode according to a long DRX cycle without first entering a low power mode for a short DRX cycle .

예 11에서, 예 9 및 10의 전력 모드 컴포넌트는, 선택적으로, UE로 하여금 긴 DRX 사이클에 기초하여 트랜시버 컴포넌트의 부분을 전원 오프함으로써 저전력 모드에 진입하게 하도록 구성될 수 있다. 전원 오프되는 트랜시버 컴포넌트의 부분은 UE의 라디오 상태 정보를 유지하기 위해 요구되지 않는 처리 회로 및 트랜시버 회로를 포함한다.In Example 11, the power mode components of Examples 9 and 10 may optionally be configured to cause the UE to enter a low power mode by powering off a portion of the transceiver component based on a long DRX cycle. The portion of the transceiver component that is powered off includes processing circuitry and transceiver circuitry not required to maintain the radio state information of the UE.

예 12에서, 예 9-11의 전력 모드 컴포넌트는, 선택적으로, UE로 하여금 긴 DRX 사이클에 기초하여 저전력 모드에 진입하게 하도록 또한 구성된다. 전력 모드 컴포넌트는 UE로 하여금 eNodeB를 포함하는 무선 기지국과의 접속 모드를 유지하게 한다. 전력 모드 컴포넌트는 UE로 하여금 유휴 모드에 진입하게 할 수 있다.In Example 12, the power mode components of Examples 9-11 are optionally also configured to allow the UE to enter a low power mode based on a long DRX cycle. The power mode component causes the UE to maintain a connection mode with a wireless base station that includes an eNodeB. The power mode component may cause the UE to enter an idle mode.

예 13에서, 예 9-12의 전력 모드 컴포넌트는, 선택적으로, UE가 저전력 모드에 진입해야 한다고 결정하도록 또한 구성된다. UE는, UE가 저전력 모드에 진입해야 한다고 결정하는 것에 응답하여, 저전력 선호사항 표시를 포함하는 보조 정보를 제공할 수 있다.In Example 13, the power mode components of Examples 9-12 are optionally also configured to determine that the UE should enter a low power mode. In response to the UE determining that the UE should enter a low power mode, the UE may provide assistance information including a low power preference indication.

예 14에서, 예 9-13의 전력 모드 컴포넌트는, UE가 저전력 모드에 있을 타이머 길이를 결정하도록 또한 구성된다. 보조 정보 컴포넌트는 보조 정보와 함께 타이머 길이를 제공하도록 구성될 수 있다.In Example 14, the power mode components of Examples 9-13 are also configured to determine the timer length in which the UE is in the low power mode. The ancillary information component may be configured to provide a timer length with the ancillary information.

예 15는, 보조 정보 컴포넌트, 신호 강도 컴포넌트, 핸드오버 컴포넌트 및 접속 컴포넌트를 포함하는 eNodeB이다. 보조 정보 컴포넌트는 eNodeB에 접속된 사용자 장비(UE)로부터 보조 정보를 수신하도록 구성된다. 보조 정보는 저전력 선호사항 표시를 포함한다. 신호 강도 컴포넌트는 UE의 신호 강도가 핸드오버 임계치 부근이라고 결정하도록 구성된다. 핸드오버 컴포넌트는 보조 정보에 기초하여 UE에 대한 핸드오버 절차를 수정하도록 구성된다. 접속 컴포넌트는, 보조 정보를 수신하는 것에 응답하여, 접속 해제 메시지를 UE에 제공하도록 구성된다.Example 15 is an eNodeB comprising an auxiliary information component, a signal strength component, a handover component and a connection component. The ancillary information component is configured to receive assistance information from a user equipment (UE) connected to the eNodeB. The supplementary information includes a low power preference indication. The signal strength component is configured to determine that the signal strength of the UE is near a handover threshold. The handover component is configured to modify a handover procedure for the UE based on the assistance information. The connection component is configured to provide a disconnect message to the UE in response to receiving the assistance information.

예 16에서, 예 15의 eNodeB는, 선택적으로, UE에 대한 비활성 타이머가 곧 만료한다고 결정하도록 구성된 비활성 컴포넌트를 더 포함한다. 핸드오버 컴포넌트는 UE에 대한 핸드오버 임계치를 감소시킴으로써 핸드오버 절차를 수정할 수 있다.In Example 16, the eNodeB of Example 15 optionally further comprises an inactive component configured to determine that an inactivity timer for the UE is about to expire. The handover component may modify the handover procedure by reducing the handover threshold for the UE.

예 17에서, 예 15 및 16의 접속 컴포넌트는, 선택적으로, 비활성 타이머의 만료에 응답하여 접속 해제 정보를 UE에 제공할 수 있다.In Example 17, the connection components of Examples 15 and 16, optionally, can provide the UE with the release information in response to the expiration of the inactivity timer.

예 18에서, 예 15-17의 eNodeB는, 선택적으로, eNodeB가 과부하되어 있다고 결정하도록 구성된 부하 컴포넌트를 포함할 수 있다. 핸드오버 컴포넌트는 UE를 다음의 eNodeB로 핸드오버하지 않음으로써 핸드오버 절차를 수정할 수 있다.In Example 18, the eNodeB of Examples 15-17 may optionally include a load component configured to determine that the eNodeB is overloaded. The handover component may modify the handover procedure by not handing the UE to the next eNodeB.

예 19에서, 예 15-18의 신호 강도 컴포넌트는, 선택적으로, UE의 신호 강도가 핸드오버 임계치에 도달했다고 결정하도록 구성된다. 접속 컴포넌트는, 신호 강도가 핸드오버 임계치에 도달하는 것에 응답하여 접속 해제 메시지를 제공할 수 있다.In Example 19, the signal strength components of Examples 15-18 are optionally configured to determine that the signal strength of the UE has reached a handover threshold. The connection component may provide a disconnect message in response to the signal strength reaching the handover threshold.

예 20에서, 예 15-19의 보조 정보는, 선택적으로, UE가 저전력 모드에 있을 선호되는 시간 길이를 나타내는 타이머 길이를 포함한다. 접속 컴포넌트는 타이머 길이에 기초하여 DRX 페이징 정보를 포함하는 접속 해제 메시지를 제공할 수 있다.In Example 20, the supplementary information of Examples 15-19 optionally includes a timer length indicating the preferred length of time the UE will be in the low power mode. The connection component may provide a disconnect message that includes DRX paging information based on the timer length.

예 21은 보조 정보를 처리하기 위한 방법이다. 이 방법은 eNodeB에 접속된 UE에 접속 재구성 메시지를 제공하는 단계를 포함한다. 접속 재구성 메시지는 전력 선호사항을 표시하도록 UE를 구성한다. 이 방법은 UE로부터 보조 정보를 수신하는 단계를 포함한다. 보조 정보는 저전력 선호사항 표시 및 타이머 길이를 포함한다. 타이머 길이는 저전력 모드에 대한 선호되는 지속기간을 나타낸다. 이 방법은, 보조 정보를 수신하는 것에 응답하여, 접속 해제 메시지를 UE에 제공하는 단계를 포함한다. 접속 해제 메시지는 타이머 길이를 포함한다.Example 21 is a method for processing auxiliary information. The method includes providing a connection reconfiguration message to a UE connected to the eNodeB. The connection reconfiguration message configures the UE to display power preferences. The method includes receiving assistance information from the UE. The supplemental information includes a low power preference indication and a timer length. The timer length represents the preferred duration for the low power mode. The method includes providing a disconnect message to a UE in response to receiving assistance information. The disconnect message includes a timer length.

예 22에서, 예 21의 방법은, 선택적으로, 저전력 선호사항 표시 및 타이머 길이를 포함하는 컨텍스트 해제 요청을 MME에 제공하는 단계를 포함할 수 있다.In Example 22, the method of Example 21 may optionally include providing to the MME a context release request that includes a low power preference indication and a timer length.

예 23에서, 예 21 및 22의 방법은, 선택적으로, MME 및 SGW에 의한 액세스 베어러 해제 절차의 수행을 개시하도록 컨텍스트 해제 요청을 MME에 제공하는 단계를 포함할 수 있다.In Example 23, the methods of Examples 21 and 22 may optionally include providing a context release request to the MME to initiate performing an access bearer release procedure by the MME and the SGW.

예 24에서, 예 21-23의 방법은, 선택적으로, MME로부터 컨텍스트 해제 커맨드를 수신하는 것에 응답하여, 접속 해제 메시지를 UE에 제공하는 단계를 포함할 수 있다. 컨텍스트 해제 커맨드는 액세스 베어러 해제 절차의 수행을 표시할 수 있다. 컨텍스트 해제 커맨드는, DRX 페이징 사이클의 길이를 포함하는 DRX 페이징 정보를 포함할 수 있고, UE가 얼마나 오래 저전력 모드에 머물 것인지를 나타내는 타이머 길이를 더 포함할 수 있다.In Example 24, the method of Examples 21-23, optionally, may include providing a disconnect message to the UE in response to receiving a context release command from the MME. The de-context command may indicate the performance of the access bearer release procedure. The de-context command may include DRX paging information including the length of the DRX paging cycle and may further include a timer length indicating how long the UE will stay in the low power mode.

예 25에서, 예 21-24의 방법은, 선택적으로, UE로의 페이징을 연기하기 위해서 타이머 길이 동안 MME에서 타이머를 개시하도록 타이머 길이를 포함하는 컨텍스트 해제 요청을 제공하는 단계를 포함할 수 있다.In Example 25, the method of Examples 21-24 may optionally include providing a context release request that includes a timer length to initiate a timer in the MME for a timer length to defer paging to the UE.

예 26에서, 예 21-25의 방법은, 선택적으로, eNodeB가 과부하되어 있다고 결정하는 단계를 포함할 수 있다. eNodeB가 과부하되어 있다고 결정하는 것에 응답하여, 접속 해제 메시지가 UE에 제공될 수 있다.In Example 26, the method of Examples 21-25 may optionally include determining that the eNodeB is overloaded. In response to determining that the eNodeB is overloaded, a disconnect message may be provided to the UE.

예 27에서, 예 21-26의 방법은, 선택적으로, 타이머 길이 동안 SGW에서 UE에 대한 다운링크 패킷들의 버퍼링을 위해 저전력 표시 및 타이머 길이를 SGW에 제공하는 단계를 포함할 수 있다.In Example 27, the method of Examples 21-26 may optionally include providing a low power indication and a timer length to the SGW for buffering of downlink packets for the UE in the SGW for a timer length.

예 28에서, 예 21-27의 방법은, 선택적으로, 시간 길이 이후에 UE에 대한 버퍼링된 다운링크 패킷들을 수신하고, 버퍼링된 다운링크 패킷들을 UE에 제공하는 단계를 포함할 수 있다.In Example 28, the method of Examples 21-27 may optionally include receiving buffered downlink packets for the UE after a time length and providing buffered downlink packets to the UE.

예 29는 UE에 의해 전력 선호사항을 표시하기 위한 방법이다. 이 방법은 무선 기지국으로부터 제1 RRC 접속 재구성 메시지를 수신하는 단계를 포함한다. 제1 RRC 접속 재구성 메시지는 전력 선호사항을 표시하도록 UE를 재구성한다. 이 방법은 무선 기지국에 보조 정보를 제공하는 단계를 포함한다. 무선 정보는 저전력 선호사항 표시를 포함한다. 이 방법은 UE의 전력 모드를 제어하는 단계를 포함한다. 이 방법은, 보조 정보를 제공하는 것에 응답하여, 긴 DRX 사이클을 나타내는 DRX 정보를 포함하는 제2 RRC 접속 재구성 메시지를 수신하는 단계를 또한 포함한다.Example 29 is a method for indicating a power preference by a UE. The method includes receiving a first RRC connection reconfiguration message from a wireless base station. The first RRC connection reconfiguration message reconfigures the UE to indicate power preferences. The method includes providing auxiliary information to a wireless base station. The wireless information includes a low power preference indication. The method includes controlling a power mode of the UE. The method also includes receiving a second RRC connection reconfiguration message comprising DRX information indicative of a long DRX cycle in response to providing assistance information.

예 30에서, 예 29의 방법은, 선택적으로, 제2 RRC 접속 재구성 메시지를 수신하는 것에 응답하여, UE로 하여금 먼저 짧은 DRX 사이클 동안 저전력 모드에 진입하지 않고 긴 DRX 사이클에 따라 저전력 모드에 진입하게 하는 단계를 포함할 수 있다.In Example 30, the method of Example 29, optionally in response to receiving a second RRC connection reconfiguration message, causes the UE to enter a low power mode according to a long DRX cycle without first entering a low power mode for a short DRX cycle .

예 31에서, 예 29 및 30의 방법은, 선택적으로, UE로 하여금 긴 DRX 사이클에 기초하여 UE의 일부를 전원 오프함으로써 저전력 모드에 진입하게 하는 단계를 포함할 수 있다. 전원 오프되는 UE의 부분은 UE의 라디오 상태 정보를 유지하기 위해 요구되지 않는 처리 회로 및 트랜시버 회로를 포함한다.In Example 31, the methods of Examples 29 and 30 may optionally include the step of causing the UE to enter a low power mode by powering off a portion of the UE based on a long DRX cycle. The portion of the UE that is powered off includes processing circuitry and transceiver circuitry not required to maintain the radio state information of the UE.

예 32에서, 예 29-31의 방법은, 선택적으로, UE로 하여금 긴 DRX 사이클에 기초하여 저전력 모드에 진입하게 하는 단계를 포함할 수 있다. 이 방법은 UE로 하여금 eNodeB를 포함하는 무선 기지국과의 접속 모드를 유지하게 하는 단계를 포함할 수 있다. 이 방법은 UE로 하여금 유휴 모드에 진입하게 하는 단계를 포함할 수 있다.In Example 32, the method of Examples 29-31 may optionally include the step of causing the UE to enter a low power mode based on a long DRX cycle. The method may comprise causing the UE to maintain a connection mode with a wireless base station comprising an eNodeB. The method may include causing the UE to enter an idle mode.

예 33에서, 예 29-32의 방법은, 선택적으로, UE가 저전력 모드에 진입해야 한다고 결정하는 단계를 포함할 수 있다. UE는, UE가 저전력 모드에 진입해야 한다고 결정하는 것에 응답하여, 저전력 선호사항 표시를 포함하는 보조 정보를 제공할 수 있다.In Example 33, the method of Examples 29-32 may optionally include determining that the UE should enter a low power mode. In response to the UE determining that the UE should enter a low power mode, the UE may provide assistance information including a low power preference indication.

예 34에서, 예 29-33의 방법은, 선택적으로, UE가 저전력 모드에 있을 타이머 길이를 결정하는 단계를 포함할 수 있다. 이 방법은 보조 정보와 함께 타이머 길이를 제공하는 단계를 포함할 수 있다.In Example 34, the method of Examples 29-33 may optionally include determining a timer length in which the UE is in a low power mode. The method may include providing a timer length with supplementary information.

예 35는 보조 정보를 처리하기 위한 방법이다. 이 방법은 eNodeB에 접속된 UE로부터 보조 정보를 수신하는 단계를 포함한다. 보조 정보는 저전력 선호사항 표시를 포함한다. 이 방법은, UE의 신호 강도가 핸드오버 임계치 부근이라고 결정하는 단계를 포함한다. 이 방법은 보조 정보에 기초하여 UE에 대한 핸드오버 절차를 수정하는 단계를 포함한다. 이 방법은, 보조 정보를 수신하는 것에 응답하여, 접속 해제 메시지를 UE에 제공하는 단계를 포함한다.Example 35 is a method for processing auxiliary information. The method includes receiving assistance information from a UE connected to the eNodeB. The supplementary information includes a low power preference indication. The method includes determining that the signal strength of the UE is near a handover threshold. The method includes modifying a handover procedure for the UE based on the assistance information. The method includes providing a disconnect message to a UE in response to receiving assistance information.

예 36에서, 예 35의 방법은, 선택적으로, UE에 대한 비활성 타이머가 곧 만료한다고 결정하는 단계를 더 포함한다. 수정하는 단계는 UE에 대한 핸드오버 임계치를 감소시킴으로써 핸드오버 절차를 수정하는 단계를 포함할 수 있다.In Example 36, the method of Example 35 optionally further comprises determining that an inactivity timer for the UE is about to expire. The modifying step may include modifying the handover procedure by reducing the handover threshold for the UE.

예 37에서, 예 35 및 36의 방법은, 선택적으로, 비활성 타이머의 만료에 응답하여 접속 해제 정보를 UE에 제공하는 단계를 포함할 수 있다.In Example 37, the methods of Examples 35 and 36 may optionally include providing disconnection information to the UE in response to expiration of the inactivity timer.

예 38에서, 예 35-37의 방법은, 선택적으로, eNodeB가 과부하되어 있다고 결정하는 단계를 포함할 수 있다. 수정하는 단계는 UE를 다음의 eNodeB로 핸드오버하지 않음으로써 핸드오버 절차를 수정하는 단계를 포함할 수 있다.In Example 38, the method of Examples 35-37 may optionally include determining that the eNodeB is overloaded. The modifying step may include modifying the handover procedure by not handing the UE to the next eNodeB.

예 39에서, 예 35-38의 방법은, 선택적으로, UE의 신호 강도가 핸드오버 임계치에 도달했다고 결정하는 단계를 포함할 수 있다. 이 방법은, 신호 강도가 핸드오버 임계치에 도달하는 것에 응답하여 접속 해제 메시지를 제공하는 단계를 포함할 수 있다.In Example 39, the method of Examples 35-38 may optionally include determining that the signal strength of the UE has reached a handover threshold. The method may include providing a disconnect message in response to the signal strength reaching a handover threshold.

예 40에서, 예 35-39의 보조 정보는, 선택적으로, UE가 저전력 모드에 있을 선호되는 시간 길이를 나타내는 타이머 길이를 포함할 수 있다. 이 방법은, 타이머 길이에 기초하여 DRX 페이징 정보를 포함하는 접속 해제 메시지를 제공하는 단계를 포함할 수 있다.In example 40, the supplementary information of examples 35-39 may optionally include a timer length indicating the preferred length of time the UE will be in the low power mode. The method may include providing a disconnect message that includes DRX paging information based on a timer length.

예 41에서, 장치는 예 21-40의 방법을 수행하는 수단을 포함할 수 있다.In Example 41, the apparatus may comprise means for performing the method of Examples 21-40.

예 42에서, 머신 판독가능 저장 매체는, 실행될 때, 예 1-41 중 어느 하나의 방법을 구현하거나 장치를 실현하는 머신 판독가능 명령어들을 포함한다.In example 42, a machine-readable storage medium, when executed, comprises machine-readable instructions for implementing the method or implementing the method of any one of examples 1-41.

앞서 소개된 기술들은, 소프트웨어 및/또는 펌웨어에 의해 프로그램되거나 구성된 프로그래머블 회로에 의해 구현될 수 있거나, 또는 이들은 전적으로 특별-목적 하드와이어드 회로에 의해 또는 이러한 형태들의 조합으로 구현될 수 있다. 이러한 특별-목적 회로는 (있다면) 예를 들어 하나 이상의 주문형 집적 회로(ASIC), 프로그래머블 로직 장치(PLD), 필드-프로그래머블 게이트 어레이(FPGA) 등의 형태일 수 있다.The above-described techniques may be implemented by programmable circuitry programmed or configured by software and / or firmware, or they may be implemented entirely by special-purpose hardwired circuitry or by a combination of these forms. Such special-purpose circuitry may be in the form of (if any) one or more application specific integrated circuits (ASICs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), and the like.

여기서 소개된 기술들을 구현하기 위한 소프트웨어 또는 펌웨어는 머신-판독가능 저장 매체 상에 저장될 수 있고, 하나 이상의 범용 또는 특별-목적 프로그래머블 마이크로프로세서에 의해 실행될 수 있다. 여기서 이용될 때 용어 "머신-판독가능 매체"는, 머신(머신은, 예를 들어, 컴퓨터, 네트워크 장치, 셀룰러 전화기, PDA, 제조 툴, 하나 이상의 프로세서를 갖는 임의의 장치 등일 수 있음)에 의해 액세스가능한 형태로 정보를 저장할 수 있는 임의의 메커니즘을 포함한다. 예를 들어, 머신-액세스가능 매체는, 기록가능/비-기록가능 매체(예를 들어, 판독 전용 메모리(ROM)), 랜덤 액세스 메모리(RAM), 자기 디스크 저장 매체, 광학 저장 매체, 플래시 메모리 장치 등)를 포함한다.The software or firmware for implementing the techniques disclosed herein may be stored on a machine-readable storage medium and executed by one or more general purpose or special purpose programmable microprocessors. The term "machine-readable medium" when used herein should be broadly interpreted as encompassing any type of machine, including a machine (e.g. a machine may be a computer, a network device, a cellular telephone, a PDA, a manufacturing tool, And any mechanism capable of storing information in an accessible form. For example, the machine-accessible medium may be a recordable / non-recordable medium (e.g., read only memory (ROM)), random access memory (RAM), magnetic disk storage media, Device, etc.).

용어 "로직"은, 여기서 이용될 때, 예를 들어, 특별-목적 하드와이어드 회로, 프로그래머블 회로와 연계한 소프트웨어 및/또는 펌웨어, 또는 이들의 조합을 포함할 수 있다.The term "logic" when used herein may include, for example, special-purpose hard wired circuits, software and / or firmware in conjunction with programmable circuits, or a combination thereof.

본 개시물은 특정의 예시적인 실시예에 대한 참조를 포함하고 있지만, 청구항들은 설명된 실시예로 제한되지는 않고, 첨부된 청구항의 사상과 범위 내에서 수정 및 변경되어 실시될 수 있다는 것을 인식할 것이다. 따라서, 본 명세서 및 도면은 제한적 의미라기보다는 예시적인 의미로 간주되어야 한다.While the present disclosure includes references to certain illustrative embodiments, it is to be understood that the claims are not limited to the embodiments described, but are capable of modifications and alterations within the spirit and scope of the appended claims. will be. Accordingly, the specification and drawings are to be regarded in an illustrative rather than a restrictive sense.

다양한 기술들 또는 그 특정 양태들이나 부분들은, 플로피 디스켓, CD-ROM, 하드 드라이브, 비일시적 컴퓨터 판독가능 저장 매체, 또는 임의의 다른 머신-판독가능 저장 매체와 같은 유형의(tangible) 매체로 구현된 프로그램 코드(즉, 명령어들)의 형태를 취할 수 있고, 프로그램 코드가 컴퓨터와 같은 머신으로 로딩되어 이 머신에 의해 실행될 때, 머신은 다양한 기술들을 실시하기 위한 장치가 된다. 프로그래머블 컴퓨터 상에서의 프로그램 코드 실행의 경우, 컴퓨팅 장치는, 프로세서, 프로세서에 의해 판독가능한 저장 매체(휘발성 및 비휘발성 메모리 및/또는 저장 요소를 포함함), 적어도 하나의 입력 장치 및 적어도 하나의 출력 장치를 포함할 수 있다. 휘발성 및 비휘발성 메모리 및/또는 저장 요소는, RAM, EPROM, 플래시 드라이브, 광학 드라이브, 자기 하드 드라이브, 또는 전자 데이터를 저장하기 위한 다른 매체일 수 있다. eNodeB(또는 다른 기지국) 및 UE(또는 다른 이동국)은 또한 트랜시버 컴포넌트, 카운터 컴포넌트, 처리 컴포넌트 및/또는 클록 컴포넌트나 타이머 컴포넌트를 포함할 수 있다. 여기서 설명된 다양한 기술들을 구현 또는 이용할 수 있는 하나 이상의 프로그램들은, 애플리케이션 프로그래밍 인터페이스(API: application programming interface), 재사용가능 컨트롤 등을 이용할 수 있다. 이러한 프로그램들은 컴퓨터 시스템과 통신하기 위해 고수준 절차형 또는 객체 지향형 프로그래밍 언어로 구현될 수 있다. 그러나, 프로그램(들)은 요구되는 경우에 어셈블리 또는 기계 언어로 구현될 수 있다. 임의의 경우에, 언어는 컴파일링되거나 인터프리팅된 언어일 수 있고, 하드웨어 구현과 결합될 수 있다.The various technologies or specific aspects or portions thereof may be embodied in a computer-readable medium, such as a floppy diskette, CD-ROM, hard drive, non-volatile computer readable storage medium, or any other machine- The program code may take the form of program code (i.e., instructions), and when the program code is loaded into and executed by a machine such as a computer, the machine becomes a device for implementing various techniques. In the case of program code execution on a programmable computer, the computing device includes a processor, a storage medium readable by the processor (including volatile and nonvolatile memory and / or storage elements), at least one input device, and at least one output device . ≪ / RTI > The volatile and nonvolatile memory and / or storage elements may be RAM, EPROM, flash drive, optical drive, magnetic hard drive, or other medium for storing electronic data. The eNodeB (or other base station) and the UE (or other mobile station) may also include a transceiver component, a counter component, a processing component, and / or a clock component or a timer component. One or more programs that may implement or utilize the various techniques described herein may utilize an application programming interface (API), reusable controls, and the like. These programs can be implemented in a high-level procedural or object-oriented programming language to communicate with computer systems. However, the program (s) may be implemented in assembly or machine language if desired. In any case, the language may be a compiled or interpreted language and may be combined with a hardware implementation.

본 명세서에서 설명되는 많은 기능 유닛들은, 그들의 구현 독립성을 더욱 특별히 강조하기 위하여 이용되는 용어인 하나 이상의 컴포넌트로서 구현될 수 있다는 점을 이해해야 한다. 예를 들어, 컴포넌트는 맞춤형 VLSI 회로나 게이트 어레이를 포함하는 하드웨어 회로, 로직 칩, 트랜지스터 또는 다른 개별 부품과 같은 기성품 반도체로서 구현될 수 있다. 컴포넌트는 또한 필드 프로그래머블 게이트 어레이, 프로그래머블 어레이 로직, 프로그래머블 로직 장치 등과 같은 프로그래머블 하드웨어 장치로 구현될 수 있다.It should be understood that many of the functional units described herein may be implemented as one or more components that are terms used to more particularly emphasize their implementation independence. For example, the components may be implemented as off-the-shelf semiconductors such as custom VLSI circuits or hardware circuits including logic gates, logic chips, transistors, or other discrete components. The components may also be implemented as programmable hardware devices, such as field programmable gate arrays, programmable array logic, programmable logic devices, and the like.

컴포넌트는 또한 다양한 타입의 프로세서에 의한 실행을 위해 소프트웨어로 구현될 수 있다. 예를 들어, 실행가능한 코드의 식별된 컴포넌트는, 예를 들어, 객체, 절차 또는 함수로서 구성될 수 있는 컴퓨터 명령어들의 하나 이상의 물리적 또는 논리적 블록들을 포함할 수 있다. 그럼에도 불구하고, 식별된 컴포넌트의 실행파일들(executables)은 물리적으로 함께 위치할 필요는 없고, 논리적으로 함께 결합될 때, 컴포넌트를 포함하며 이 컴포넌트의 기술된 목적을 달성하는 상이한 위치들에 저장된 이질적인 명령어들을 포함할 수 있다.The components may also be implemented in software for execution by various types of processors. For example, the identified component of executable code may include one or more physical or logical blocks of computer instructions that may be configured as, for example, an object, a procedure, or a function. Nonetheless, the executables of the identified components need not be physically co-located, and when logically joined together, they may include heterogeneous components that are stored in different locations to achieve the stated purpose of the component ≪ / RTI >

실제, 실행가능한 코드의 컴포넌트는 단일의 명령어 또는 다수의 명령어일 수 있고, 심지어 수 개의 상이한 코드 세그먼트들에 걸쳐, 상이한 프로그램들 사이에 그리고 수 개의 메모리 장치들에 걸쳐 분산될 수 있다. 유사하게, 연산 데이터는 여기서는 컴포넌트들 내에서 식별되고 예시될 수 있지만, 임의의 적합한 형태로 임베딩되고 임의의 적합한 타입의 데이터 구조 내에서 구성될 수 있다. 연산 데이터는 단일의 데이터 세트로서 수집될 수 있거나, 또는 상이한 저장 장치들을 포함한 상이한 위치들에 걸쳐 분산될 수 있고, 단순히 시스템이나 네트워크 상에 전자 신호로서 적어도 부분적으로 존재할 수 있다. 컴포넌트들은, 원하는 기능을 수행하도록 동작가능한 에이전트를 포함하여, 수동형 또는 능동형일 수 있다.In practice, the components of executable code may be a single instruction or multiple instructions, and may even be distributed across several different code segments, between different programs, and across several memory devices. Similarly, the compute data may be identified and exemplified herein within the components, but may be embodied in any suitable form and configured within any suitable type of data structure. The operational data may be collected as a single data set or may be distributed over different locations including different storage devices and may simply be at least partially present as electronic signals on a system or network. The components may be passive or active, including an agent operable to perform the desired function.

본 명세서 전체에 걸쳐 "예(example)"에 대한 언급은, 이 예와 함께 설명되는 특정한 피처, 구조 또는 특성이 본 개시물의 적어도 하나의 실시예에 포함된다는 것을 의미한다. 따라서, 본 명세서 전체에 걸쳐 다양한 곳에서 나타나는 문구 "예에서"는 반드시 모두가 동일한 실시예를 언급하는 것은 아니다.Reference throughout this specification to "exemplary " means that a particular feature, structure, or characteristic described in connection with the example is included in at least one embodiment of the disclosure. Thus, the phrase "in the examples " appearing in various places throughout this specification is not necessarily all referring to the same embodiment.

여기서 이용될 때, 복수의 항목, 구조적 요소, 구성적 요소 및/또는 재료는 편의상 공통의 리스트(common list)로 제시될 수 있다. 그러나, 이들 리스트는, 리스트의 각각의 멤버가 별개의 고유한 멤버로서 개별적으로 식별되는 것처럼 해석되어야 한다. 따라서, 이러한 리스트의 어떠한 개별 멤버도, 반대되는 표시 없이 공통 그룹 내의 그들의 프리젠테이션에만 기초하여 동일한 리스트의 임의의 다른 멤버의 사실상의 균등물로서 해석되어서는 안 된다. 또한, 본 개시물의 다양한 실시예 및 예는 여기서 그 다양한 컴포넌트들에 대한 대안과 함께 언급될 수 있다. 이러한 실시예, 예 및 대안은 서로의 사실상의 균등물로서 해석되어서는 안 되고, 본 개시물의 별개의 그리고 자율적인 표현으로서 간주되어야 한다는 점을 이해해야 한다.As used herein, a plurality of items, structural elements, constituent elements and / or materials may conveniently be presented in a common list. However, these lists should be interpreted such that each member of the list is individually identified as a distinct and unique member. Thus, any individual member of such a list should not be construed as a true equivalence of any other member of the same list based solely on their presentation in the common group without an opposite indication. In addition, various embodiments and examples of this disclosure may be mentioned herein with alternatives to the various components thereof. It is to be understood that such embodiments, examples and alternatives should not be construed as being deemed a departure from one another, but as separate and autonomous representations of the present disclosure.

상기 내용은 명료성을 위해 다소 상세히 설명되었지만, 그 원리로부터 벗어나지 않고 특정 변경 및 수정이 이루어질 수 있다는 것은 명백할 것이다. 여기서 설명된 프로세스와 장치 양쪽 모두를 구현하는 많은 대안적인 방식이 있다는 점에 유의해야 한다. 따라서, 본 실시예는 제한이 아니라 예시적인 것으로 간주되어야 하고, 본 개시물은 여기서 주어진 상세사항으로 제한되지는 않아야 하며, 첨부된 청구항들의 범위와 균등물 내에서 수정될 수 있다.Although the foregoing is described in some detail for clarity, it will be apparent that certain changes and modifications may be practiced without departing from the principles. It should be noted that there are many alternative ways of implementing both the processes and devices described herein. Accordingly, the present embodiments should be considered as illustrative rather than restrictive, and the present disclosure should not be limited to the details given herein, and may be modified within the scope of the appended claims.

관련 기술분야의 통상의 기술자라면, 본 개시물의 기반 원리로부터 벗어나지 않고 전술된 실시예의 상세사항에 대해 많은 변경이 이루어질 수 있다는 것을 인식할 것이다. 따라서, 본 개시물의 범위는 이하의 청구항들에 의해서만 결정되어야 한다.Those of ordinary skill in the pertinent art will recognize that many modifications may be made to the details of the embodiments described above without departing from the underlying principles of the disclosure. Accordingly, the scope of the disclosure should be determined only by the following claims.

Claims (22)

삭제delete eNodeB(evolved node B)의 장치로서,
상기 eNodeB에 접속된 사용자 장비(UE)로부터 보조 정보를 수신하도록 구성된 보조 정보 컴포넌트 - 상기 보조 정보는 저전력 선호사항 표시(low power preference indication)를 포함함 - ;
상기 UE의 신호 강도가 핸드오버 임계치 부근이라고 결정하도록 구성된 신호 강도 컴포넌트;
상기 보조 정보에 기초하여 상기 UE에 대한 핸드오버 절차를 수정하도록 구성된 핸드오버 컴포넌트;
상기 보조 정보를 수신하는 것에 응답하여, 접속 해제 메시지를 상기 UE에 제공하도록 구성된 접속 컴포넌트; 및
상기 UE에 대한 비활성 타이머가 곧 만료한다고 결정하도록 구성된 비활성 컴포넌트를 포함하고,
상기 핸드오버 컴포넌트는 상기 UE에 대한 상기 핸드오버 임계치를 감소시킴으로써 상기 핸드오버 절차를 수정하는, 장치.
A device of an evolved node B (eNodeB)
An auxiliary information component configured to receive assistance information from a user equipment (UE) connected to the eNodeB, the assistance information including a low power preference indication;
A signal strength component configured to determine that the signal strength of the UE is near a handover threshold;
A handover component configured to modify a handover procedure for the UE based on the assistance information;
A connection component configured to provide a disconnect message to the UE in response to receiving the assistance information; And
An inactive component configured to determine that an inactivity timer for the UE will expire soon,
Wherein the handover component modifies the handover procedure by decreasing the handover threshold for the UE.
제2항에 있어서,
상기 접속 컴포넌트는 상기 비활성 타이머의 만료에 응답하여 상기 접속 해제 메시지를 상기 UE에 제공하는 장치.
3. The method of claim 2,
Wherein the connection component provides the disconnect message to the UE in response to expiration of the inactivity timer.
eNodeB(evolved node B)의 장치로서,
상기 eNodeB에 접속된 사용자 장비(UE)로부터 보조 정보를 수신하도록 구성된 보조 정보 컴포넌트 - 상기 보조 정보는 저전력 선호사항 표시(low power preference indication)를 포함함 - ;
상기 UE의 신호 강도가 핸드오버 임계치 부근이라고 결정하도록 구성된 신호 강도 컴포넌트;
상기 보조 정보에 기초하여 상기 UE에 대한 핸드오버 절차를 수정하도록 구성된 핸드오버 컴포넌트;
상기 보조 정보를 수신하는 것에 응답하여, 접속 해제 메시지를 상기 UE에 제공하도록 구성된 접속 컴포넌트; 및
상기 eNodeB가 과부하되어 있다고 결정하도록 구성된 부하 컴포넌트를 포함하고,
상기 핸드오버 컴포넌트는 상기 UE를 다음의 eNodeB로 핸드오버하지 않음으로써 상기 핸드오버 절차를 수정하는, 장치.
A device of an evolved node B (eNodeB)
An auxiliary information component configured to receive assistance information from a user equipment (UE) connected to the eNodeB, the assistance information including a low power preference indication;
A signal strength component configured to determine that the signal strength of the UE is near a handover threshold;
A handover component configured to modify a handover procedure for the UE based on the assistance information;
A connection component configured to provide a disconnect message to the UE in response to receiving the assistance information; And
And a load component configured to determine that the eNodeB is overloaded,
Wherein the handover component modifies the handover procedure by not handing the UE to the next eNodeB.
제4항에 있어서,
상기 신호 강도 컴포넌트는 상기 UE의 신호 강도가 상기 핸드오버 임계치에 도달했다고 결정하도록 구성되고, 상기 접속 컴포넌트는 상기 신호 강도가 상기 핸드오버 임계치에 도달하는 것에 응답하여 상기 접속 해제 메시지를 제공하는 장치.
5. The method of claim 4,
Wherein the signal strength component is configured to determine that the signal strength of the UE has reached the handover threshold and wherein the connection component provides the disconnect message in response to the signal strength reaching the handover threshold.
제2항 또는 제4항에 있어서,
상기 보조 정보는 상기 UE가 저전력 모드에 있을 선호되는 시간 길이를 나타내는 타이머 길이를 더 포함하고, 상기 접속 컴포넌트는 상기 타이머 길이에 기초하여 DRX 페이징 정보를 포함하는 상기 접속 해제 메시지를 제공하는 장치.
The method according to claim 2 or 4,
Wherein the assistance information further comprises a timer length indicating a preferred length of time that the UE is in a low power mode and wherein the connection component provides DRX paging information based on the timer length.
eNodeB의 동작들을 수행하는 처리 유닛에 의한 실행을 위한 명령어들을 저장하는 비일시적 컴퓨터 판독가능 저장 매체로서, 상기 동작들은 상기 처리 유닛에 의해 실행될 때 방법을 수행하고, 상기 방법은,
상기 eNodeB에 접속된 사용자 장비(UE)에 접속 재구성 메시지를 전송하는 단계 - 상기 접속 재구성 메시지는 전력 선호사항을 나타내도록 상기 UE를 구성함 -;
상기 UE로부터 보조 정보를 수신하는 단계 - 상기 보조 정보는 저전력에 대한 전력 선호사항 표시자 및 타이머 길이를 포함하고, 상기 타이머 길이는 저전력 모드에 대한 선호되는 지속기간을 나타냄 -;
상기 보조 정보를 수신하는 것에 응답하여, 접속 해제 메시지를 상기 UE에 전송하는 단계 - 상기 접속 해제 메시지는 상기 타이머 길이를 포함함 - ; 및
저전력에 대한 상기 전력 선호사항 표시자 및 상기 타이머 길이를 포함하는 컨텍스트 해제 요청(context release request)을 이동성 관리 엔티티(mobility management entity; MME)에 전송하는 단계
를 포함하는, 비일시적 컴퓨터 판독가능 저장 매체.
A non-transitory computer readable storage medium storing instructions for execution by a processing unit that performs operations of an eNodeB, the operations performing a method when executed by the processing unit,
Sending a connection reconfiguration message to a user equipment (UE) connected to the eNodeB, the connection reconfiguration message configuring the UE to indicate power preferences;
Receiving supplemental information from the UE, the supplemental information including a power preference indicator and a timer length for low power, the timer length representing a preferred duration for a low power mode;
In response to receiving the assistance information, transmitting a disconnect message to the UE, the disconnect message including the timer length; And
Transmitting to the mobility management entity (MME) a context release request including the power preference indicator for the low power and the timer length;
≪ / RTI >
삭제delete 제7항에 있어서, 상기 방법은, 상기 MME 및 서빙 게이트웨이(serving gateway; SGW)에 의한 액세스 베어러 해제 절차(release access bearer procedure)의 수행을 개시하도록 상기 컨텍스트 해제 요청을 상기 MME에 전송하는 단계를 더 포함하는, 비일시적 컴퓨터 판독가능 저장 매체.8. The method of claim 7, wherein the method further comprises transmitting the de-context request to the MME to initiate performance of a release access bearer procedure by the MME and a serving gateway (SGW) ≪ / RTI > 제9항에 있어서, 상기 방법은, 상기 MME로부터 컨텍스트 해제 커맨드를 수신하는 것에 응답하여, 상기 접속 해제 메시지를 상기 UE에 전송하는 단계를 더 포함하고, 상기 컨텍스트 해제 커맨드는 상기 액세스 베어러 해제 절차의 수행을 나타내고, 상기 컨텍스트 해제 커맨드는 DRX 페이징 사이클(paging DRX cycle)의 길이를 포함하는 DRX 페이징 정보를 포함하고, 상기 UE가 얼마나 오래 상기 저전력 모드에 머물 것인지를 나타내는 상기 타이머 길이를 더 포함하는, 비일시적 컴퓨터 판독가능 저장 매체.10. The method of claim 9, wherein the method further comprises transmitting the disconnect message to the UE in response to receiving a context deactivation command from the MME, wherein the context deactivation command comprises: Wherein the de-context command comprises DRX paging information including a length of a paging DRX cycle and further comprises the timer length indicating how long the UE will stay in the low power mode. Non-volatile computer readable storage medium. 삭제delete 삭제delete 삭제delete 삭제delete 삭제delete 삭제delete 노드에 접속된 UE의 저전력 소비를 가능하게 하는 방법으로서,
접속 재구성 메시지를 사용자 장비(UE)에 전송하는 단계 - 상기 접속 재구성 메시지는 전력 선호사항을 나타내도록 상기 UE를 구성함 -;
상기 UE로부터 보조 정보를 수신하는 단계 - 상기 보조 정보는 전력 선호사항 표시자 및 타이머 길이를 포함하고, 상기 타이머 길이는 저전력 모드에 대한 선호되는 지속기간을 나타냄 -;
상기 보조 정보를 수신하는 것에 응답하여, 접속 해제 메시지를 상기 UE에 전송하는 단계 - 상기 접속 해제 메시지는 상기 타이머 길이를 포함함 - ; 및
저전력에 대한 상기 전력 선호사항 표시자 및 상기 타이머 길이를 포함하는 컨텍스트 해제 요청을 이동성 관리 엔티티(mobility management entity; MME)에 전송하는 단계
를 포함하는 방법.
CLAIMS What is claimed is: 1. A method for enabling low power consumption of a UE connected to a node,
Sending a connection reconfiguration message to a user equipment (UE), the connection reconfiguration message configuring the UE to indicate power preferences;
Receiving auxiliary information from the UE, the auxiliary information including a power preference indicator and a timer length, the timer length representing a preferred duration for a low power mode;
In response to receiving the assistance information, transmitting a disconnect message to the UE, the disconnect message including the timer length; And
Sending a context deallocation request including the power preference indicator and the timer length for low power to a mobility management entity (MME)
≪ / RTI >
제17항에 있어서, 상기 노드가 과부하되어 있다고 결정하는 단계를 더 포함하고, 상기 노드가 과부하되어 있다고 결정하는 것에 응답하여 상기 접속 해제 메시지가 상기 UE에 제공되는 방법.18. The method of claim 17, further comprising determining that the node is overloaded, wherein the disconnect message is provided to the UE in response to determining that the node is overloaded. 제17항에 있어서,
상기 타이머 길이 동안 서빙 게이트웨이(serving gateway; SGW)에서 상기 UE에 대한 다운링크 패킷들을 버퍼링하기 위해 저전력에 대한 상기 전력 선호사항 표시자 및 상기 타이머 길이를 상기 SGW에 제공하는 단계를 더 포함하는 방법.
18. The method of claim 17,
Further comprising providing the SGW with the power preference indicator and the timer length for low power to buffer downlink packets for the UE at a serving gateway (SGW) during the timer duration.
제19항에 있어서, 상기 타이머 길이 이후에 상기 UE에 대한 버퍼링된 다운링크 패킷들을 수신하는 단계 및 상기 버퍼링된 다운링크 패킷들을 상기 UE에 제공하는 단계를 더 포함하는 방법.20. The method of claim 19, further comprising: receiving buffered downlink packets for the UE after the timer length and providing the buffered downlink packets to the UE. 제17항 내지 제20항 중 어느 한 항에 따른 방법을 수행하는 프로세서를 포함하는 장치.21. An apparatus comprising a processor for performing a method according to any one of claims 17 to 20. 실행될 때, 머신으로 하여금 제17항 내지 제20항 중 어느 한 항에 따른 방법을 수행하도록 하는 코드를 포함하는, 비일시적 머신 판독가능 기록 매체.20. A non-transitory machine-readable recording medium comprising code for causing a machine to perform a method according to any one of claims 17 to 20 when executed.
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US20140094119A1 (en) 2014-04-03
US9173124B2 (en) 2015-10-27
US9374806B2 (en) 2016-06-21
EP2901619A1 (en) 2015-08-05
WO2014052381A1 (en) 2014-04-03
JP6044858B2 (en) 2016-12-14
US20150223050A1 (en) 2015-08-06
US9743390B2 (en) 2017-08-22
EP2901602A1 (en) 2015-08-05
HUE043710T2 (en) 2019-09-30
US10045245B2 (en) 2018-08-07
CN106535338B (en) 2019-12-03
EP2901603B1 (en) 2019-11-13
EP2901729A1 (en) 2015-08-05
AU2017200813A1 (en) 2017-03-02
JP6283382B2 (en) 2018-02-21
US20140092865A1 (en) 2014-04-03
CN104904303A (en) 2015-09-09
HUE043187T2 (en) 2019-08-28
ES2728468T3 (en) 2019-10-24
KR101643127B1 (en) 2016-07-28
EP2901589A4 (en) 2016-07-06
AU2016203284A1 (en) 2016-06-09
KR20150039805A (en) 2015-04-13
KR102023286B1 (en) 2019-09-19
EP2901768A1 (en) 2015-08-05
ES2745328T3 (en) 2020-02-28
JP2015529418A (en) 2015-10-05
KR101643999B1 (en) 2016-08-01
BR112015004586B1 (en) 2022-08-30
KR20150040995A (en) 2015-04-15
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CN110311714A (en) 2019-10-08
JP6263827B2 (en) 2018-01-24
KR101761273B1 (en) 2017-07-25
JP2016201825A (en) 2016-12-01
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JP6129974B2 (en) 2017-05-17

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